TIL adding salt to water actually RAISES the boiling temperature, but decreases its heat capacity (amount of heat needed to raise the temperature by 1*). Adding a teaspoon of salt to pasta will only speed up the time by a couple seconds, but add to the flavor. thermtest.com/does-adding…
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πŸ‘€︎ u/damuffinmann
πŸ“…︎ Dec 10 2021
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First Unisex "Apocalypse" Jacket launches tomorrow, focus on erosion and heat resistance as well as carrying capacity.
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πŸ‘€︎ u/Jason_Straker
πŸ“…︎ Jan 26 2022
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When do you use heat capacity and when do you use enthalpy in the calculation?
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πŸ‘€︎ u/Far_Hall6669
πŸ“…︎ Jan 18 2022
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Is latent heat the reason behind specific heat capacity

As I understand it, latent heat is heat that goes to potential energy in the form of weakening the intermolecular forces between molecules, instead of to the actual motion and speed of the molecule. AKA, when the molecules spread out, it isn’t exactly a 1:1 proportion to the amount of energy added.

I also understand that the molecules in a system spread out more as more heat is applied, like expanding gases, or even glass. So shouldn’t a little bit of the applied heat be stored in the form of latent heat, and wouldn’t the amount of energy stored in latent heat be the reason behind specific heat capacities, considering that every molecule has unique intermolecular interactions?

I know that this question might seem obvious, but we really glossed over our thermodynamics unit, and we hardly spent any time on latent heat.

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πŸ‘€︎ u/PurulentPaul
πŸ“…︎ Jan 22 2022
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Calculating heat capacity of various liquids, and a mix temperature formula for Excel

Please bear with me on this question, I'm new to product development, come from a chef background and slowly wanting to learn elements of food science to aid in my development.

I want to create a useful Excel tool to aid my product development. In this case, I'm wanting to learn how to calculate the heat capacities of various liquids (varying viscosity). From this, I'd then like to know how to work out how much of Liquid A to add to Liquid B to produce Liquid C at a desired temperature.

I hope that makes some sense. Not paying attention in GCSE Maths and Science is catching up with me.

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πŸ‘€︎ u/UKCHEF_
πŸ“…︎ Jan 22 2022
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Specific heat capacity v.redd.it/1yg9t2gcuw681
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πŸ‘€︎ u/Schlaugummi46
πŸ“…︎ Dec 21 2021
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Anyone here read "The Specific Heat Capacity of Love" by Old xian (author of 19 days)? I keep going back to it cause i hate myself.
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πŸ‘€︎ u/shinshinshu
πŸ“…︎ Dec 13 2021
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[Year 9 Physics : Specific Heat Capacity] Control variables for the specific heat capacity practical?

This experiment is designed to measure the specific heat capacity across DIFFERENT materials. What should I control in order to keep the results the same

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πŸ‘€︎ u/Corvile_
πŸ“…︎ Jan 18 2022
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Can you help me understand heat capacity management (without Spaced Out expansion)

Hello!

120 hours total, but never got past cycle 50ish (or far outside starting biome). Sad to say I learned quickly that I need to do things near-perfectly from the start to avoid colony die-off, meaning lots (hours) of pausing, thinking, frustration, headaches. Trying to end that cycle.

I likely spend more time than others (enjoying the journey), making things semi-self sufficient and comfortable before planning on exploring. Heat management is the one issue I never could juggle because temperature isn't just temperature.

The image below is my cycle 36 base (I load-scummed some slickster eggs, wort seeds and amalgam - will load-scum some plastic for Steam Turbines if needed). I have newly hatched Slicksters (buttom left) that needs a supply of hot CO2. Math dictates that - once tame - those 3 will gulp down all my CO2, unless I can run enough coal generators to get hot CO2. Said coal generators would need cooling to avoid runaway temperatures.

I'm looking to learn what bare minimum techs/materials I'll need to make a setup so I can attain TARGET temperatures where I want them - regardless of heat capacity at target location. I know that simply piping X coolant through an area WILL be either too much or too little. I've just never been able to grasp where to even start so I can achieve it.

I've never really worked with refined metals because I can't see how to deal with that extra heat before I have counter-measures.

How do YOU do it?

If you reached this sentence, I thank you for your time!

https://preview.redd.it/tm7xnbxpub781.png?width=2024&format=png&auto=webp&s=14539f881a594abd8ad279f8ae3f48606ea71ad0

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πŸ‘€︎ u/RosenVitae
πŸ“…︎ Dec 23 2021
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[Year 9 Physics : Specific Heat Capacity required practical] Control variables?

Hello, I am doing a plan for this experiment and i need to include at least three control variables. The experiment investigates how specific heat capacity varies between DIFFERENT materials. This is done by calculating the specific heat capacity of each material via the method. What control variables are there in this experiment.

Heres the method if it helps:

  1. Place the immersion heater into the central hole at the top of the block.
  2. Place the thermometer into the smaller hole and put a couple of drops of oil into the hole to make sure the thermometer is surrounded by hot material.
  3. Fully insulate the block by wrapping it loosely with cotton wool.
  4. Record the temperature of the block.
  5. Connect the heater to the power supply and turn it off after ten minutes.
  6. After ten minutes the temperature will still rise even though the heater has been turned off and then it will begin to cool. Record the highest temperature that it reaches and calculate the temperature rise during the experiment.
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πŸ‘€︎ u/kgamer108k
πŸ“…︎ Jan 18 2022
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how does ecobee save on energy bill? let's say if heat pump is one stage, does ecobee do anything to save on bill, I guess it can't reduce capacity on system. also what does sensor that comes with it do? is it regular motion sensor? and if someone is in a room, can it "focus" on that room?
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πŸ‘€︎ u/paata01
πŸ“…︎ Dec 27 2021
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Why do we use the specific heat capacity in the heat formula, instead of just the heat capacity?

So Q = mc \delta T, with m being the mass of the sample, c being the specific heat capacity and \delta T being the temperature change.

But c = C/m, where C is the heat capacity.

So Q = C \delta T. Isn't that easier to work with?

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πŸ‘€︎ u/GoGoGadgetDick95
πŸ“…︎ Dec 13 2021
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HW . Sauna stoves heat capacity is 120kj/C it’s heated up to 340C. how much is the stove able to vaporize water to 100C steam when the water temperature in the beginning is 40C? The right answer should be 11Kg i got 16Kg. I’m wondering what am i doing wrong?
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πŸ“…︎ Dec 13 2021
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Why do different materials have different heat capacities?

Water has a higher heat capacity than oil. So water can "take in" more heat, without getting warmer, than oil can. What is it about the water that makes it that way? Where does the heat go?

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πŸ‘€︎ u/GoGoGadgetDick95
πŸ“…︎ Dec 13 2021
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Lab Report: Heat Capacity Ratio For Gases

Jekathjenani Ratnakumaran Β  Heat capacity of gases is the amount of heat required to increase the temperature of one mole of the gas through one degree Celsius at constant pressure o.

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πŸ‘€︎ u/Proof-Ad8960
πŸ“…︎ Jan 21 2022
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What's your best analogy for explaining specific heat and/or heat capacity?

I'm looking for a new analogy to explain to my university-level students (non-majors), and I'm always impressed by peoples' creativity on here.

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πŸ‘€︎ u/jvriesem
πŸ“…︎ Dec 03 2021
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Stinger Heat Capacity vs Cooldown upgrades?

I'm now at Rank 15 and I've been thinking through what is the most effective use of my Lynx points. It doesn't seem to me that the Stinger upgrades are too useful, at least at this point in the game for me. I'm trying to figure out if there's any effective difference between the Heat Capacity vs the Cooldown upgrade. The wiki seems to imply that both achieve the same effect, which is to increase the amount of time that the Stinger can be used before it overheats:

> Excess heat will build up in the Cutter with the use of the Stinger head, displayed in the bottom-right of the helmet UI as a bar. If the player overheats the Stinger, they will be set on fire and take fire damage. An audible warning can be heard when the cutter is close to overheating. This problem can be mitigated by investing in the Heat Capacity and Overheat Cooldown line of upgrades (if playing in Career mode), and by allowing the Cutter to cool down between uses.

Any advantage of one upgrade tree vs the other?

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πŸ‘€︎ u/Kendalf
πŸ“…︎ Dec 22 2021
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Zero Heat capacity bug

I have been adding onto my ship for a week now and actually have enough shields to keep a radiator on and protected, so I was pretty excited, but I ran into a bug where it says that I have zero out of zero heat cap. I have over 10 large heatsinks, I have fought in many battles. I check the thermal connections and everything is hooked up. If I turn on the cloak, I can see my room with the sinks getting hot. But when I get into a fight, all my shields fail immediately and I get creamed.

Pretty sure it's a bug, but can't tell how to work around it. I have three different bridges, tried uninstalling all but one. Tried removing and adding back some heat sinks. Am I missing something or Is the mod just fubar?

Adding, when I reload the save, instead of lines on the heat distribution map, everything is + shaped marks like it is not updating the network and finding the connections.

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πŸ“…︎ Dec 13 2021
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Does Specific Heat/ Heat Capacity correlate with heat Conductivity?

This whole topic takes a lot of wrapping my head around it and is super confusing so bear with me

Basically, if you have an Object, like Water with a higher Specific heat than another Object of the same mass, let's say Iron, this means Water can hold more Heat Energy per 1 Kelvin right? How does this relate to the Amount of Energy both substances can conduct/ emit, so the time it takes to emit 1Joule of energy from said object to another given object? How exactly do this work and does a 50Β°C High Specific Heat Object feel hotter or Colder to the Touch than a Low specific Heat Object?

Last, of all does this also apply to colors? A Black painted Object conducts and emits heat better than a bright object like a white or silver one. does this mean A black object take feels hotter to the touch as it emits more heat faster and does this also mean a black object can store less heat energy than a white object?

Thanks for any takes on this in advance!

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πŸ‘€︎ u/DerMax_HD
πŸ“…︎ Nov 21 2021
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What is the fractional area and heat capacity ratio? Problems in interpretation of heat balance equation

Hello!

I want to model a plate and frame membrane humidifier. However,I'm having problems understanding the heat balances are on the article that I am using.

From what I understand, the wet air transfers air by convection to the membrane and to the plate.

This is the equation that I am not understanding, which is the heat balance for the wet air that enters the channels

heat exchanger equation link

Particularly, I don't understand what's the perimeter that I should use in this equation(and why)?

What is the meaning of heat capacity ratio Cw= cprhoAf*v?

What is the fractional area, used in the heat capacity ratio equation? What area is it in this example? Why?

Why is the second term of convection written in respect to the heat exchange between the dry air and the plate and not the wet air and the plate?

Thank you!

The article is here : https://www.degruyter.com/document/doi/10.1515/phys-2018-0081/html

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πŸ‘€︎ u/annikasmirnov
πŸ“…︎ Nov 07 2021
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How does specific heat capacity affect how hot something feels when we touch it?

This question was motivated by this question in my textbook:

"A 10-g piece of copper heated to 50Β°C would feel hotter in your hand than a 10-g piece of silver also heated to 50Β°C, even though copper and silver conduct heat equally well. This is because copper’s ________________ is greater than silver’s."

The word that goes in the blank is specific heat capacity.

Previously, we had learned that even if two things are the same temperature, that doesn't mean that they will feel the same temperature to you. This is because of the differences in the conductivity of substances. One could be a better insulator than the other. For example, the hardwood floor will feel colder than carpet even if they are the same temperature because carpet is a better insulator than wood, it'll transfer heat from you slower than wood.

However, here, it is given that the two materials transfer heat equivalently, and the differences in how the materials feel is blamed on the different specific heat capacities. Why?

It is my understanding that specific heat capacity correlates the amount of heat needed to raise something to a specific temperature. A higher specific heat capacity means the material requires more heat to be raised by a certain temperature and vice versa.

The way I imagine it is that if two materials have the same heat conducting qualities, then they will feel the same if they have the same temperature. If they also have different specific heat capacities, then that means that it will take different amounts of heat taken from you to change temperatures. However, they will still take heat from you at the same rate. So, as long as they don't undergo massive changes in temp, they will still feel the same temperature in your hand, regardless of their specific heat capacitates. What's wrong with my logic?

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πŸ“…︎ Dec 04 2021
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My printer's bed cracked and I'm thinking of ordering a custom cut aluminum replacement (I have a spare heating pad). What thickness should I go with as this has impact on heat capacity?
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πŸ‘€︎ u/DonutSteelTendies
πŸ“…︎ Oct 26 2021
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Gov. Inslee removes capacity restrictions for cooling centers ahead of heat wave komonews.com/news/local/g…
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πŸ‘€︎ u/OnlineMemeArmy
πŸ“…︎ Jun 26 2021
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Gov. Inslee removes capacity restrictions for cooling centers ahead of heat wave komonews.com/news/local/g…
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πŸ‘€︎ u/OnlineMemeArmy
πŸ“…︎ Jun 26 2021
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Can I use this PDE for a single phase model in which there is condensation/evaporation happening? i.e. should I add in an extra 'condensation' term, or can I account for the phase change in the density/heat capacity/thermal conductivity by updating the value of these parameters with respect to T?
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πŸ‘€︎ u/Rilandi
πŸ“…︎ Sep 08 2021
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TEAMGROUP Online Launch Event 2021: Heat Dissipation, Large Capacity, and DDR5! Live in 5 hours. Set the reminder! youtube.com/watch?v=23nnF…
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πŸ‘€︎ u/teamgroupinc
πŸ“…︎ Sep 23 2021
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Are tempshift plates better than drywall for heat capacity?

I've got a steam vent that I'd like be able to store as much of its heat as I can. My idea is to fill its chamber with background buildings, I can choose between drywall and tempshift plates. Drywall is 400k of material, while tempshift plates are 800k, and so my first thought is that a tempshift plate would hold more heat. However, the nature of the tempshift plate, to move heat around, has me asking. Can a tempshift plate hold more heat for future use than drywall?

Thanks.

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πŸ‘€︎ u/LowestOne
πŸ“…︎ Sep 02 2021
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ELI5 Why do different materials have different specific heat capacities ?

Text

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πŸ‘€︎ u/Corvile_
πŸ“…︎ Jan 19 2022
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