All molecules of a liquid take part in boiling.

MCQ

चूक किंवा बरोबर

True.

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Change of Liquid into Vapour State

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पाठ 6: Heat Transfer - Objective questions [पृष्ठ ११९]

पाठ 6 Heat Transfer
Objective questions | Q 1.05 | पृष्ठ ११९

Evaporation is rapid on a wet day.

All molecules of a liquid take part in the process of evaporation.

Boiling is a rapid phenomenon.

Boiling occurs at ....................

Heat is ................... during boiling.

The rate of evaporation of a liquid increases when:

Comment on the statement ‘evaporation is a surface phenomenon’.

Give reason for the increase in rate of evaporation of a liquid when air is blown above the liquid.

Give reason for the increase in the rate of evaporation of a liquid when temperature of liquid is increased.

How is the heat energy supplied to a liquid used during boiling at a fixed temperature?