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Effects of Heat

Evaporation o...

Question

Evaporation of a liquid at room temperature causes cooling of the surroundings.

A

False

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B

True

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Solution

The correct option is B True

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Similar questions

Q. Assertion :Evaporation causes cooling Reason: Particles of liquid absorb energy from the surrounding to regain the energy lost during evaporation.

Fill in the blanks :

(a) Boiling occurs at ___

(b) Evaporation takes place at ___

(c) The molecules of liquid ___ heat from surroundings in evaporation.

(d) Heat is ___ during boiling.

(e) Cooling is produced in ___

(f) A longer rod expands ___ than a shorter rod on being heated to the same temperature.

(g) Liquids expand ___ than the solids.

(h) Gases expand ___ than the liquids.

(i) Alcohol expands ___ than water.

(j) Iron expands ___ than copper.

Q. Question 13 (a)
Evaporation of a liquid at room temperature leads to a ___ effect.

Q. Which one of the following is a correct statement?
1. Ice provides more cooling effect than water at

273 K

.
2. Evaporation of a liquid causes cooling.
3. Increase of pressure lowers the separation between the particles of matter.

Q. Which liquid will evaporate faster at room temperature?

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