Which liquid gets solid when heated?

Is there anything that gets colder when it gets heated up?

  • I have an idea for an invention. I want to expose a container to +140°f and be able to have the contents get colder as it heats up. Anything of this nature avaliable?

  • Answer:

    Yes, the old Electrolux frig that uses ammonia water mixture.

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Other answers

A gas powered fridge.

Zoe

Try the link to solar cooling in the reference below: http://en.wikipedia.org/wiki/Absorption_refrigerator

Born Yesterday

The second law of thermodynamics tells us that heat transfers from warmer to colder. Example: put an ice cube in water, the water cools and the ice melts. There is no physical mechanism that would allow you to put heat into something and it cools off.

Maybe it's just me

No, of course not. You are putting energy in and you want it to behave like you are taking energy out. Only a mechanical device that uses the energy to run a refrigeration cycle could possibly do it and then badly if the environment is 140F

Mike1942f

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