Which device is an evaporating cooler?
Correct answer: B. Desert cooler
- A. Air conditioner
- B. Desert cooler
- C. Room cooler
- D. Projector
Explanation
A desert cooler, also known as an evaporative cooler, is a device that uses the principle of evaporative cooling to lower the temperature of air. It works by passing hot, dry air over a wet surface, which causes the water on the surface to evaporate and absorb heat from the air, thus cooling it down
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About Thermal Equilibrium and Heat
Thermal equilibrium means that bodies in contact have the same temperature and no net heat flows between them. The topic distinguishes heat from temperature, uses the zeroth law of thermodynamics, and covers heat transfer, specific heat capacity, thermal expansion and the conditions for reaching equilibrium.
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