Energy Transfers in Changes of State

IMPORTANT

Energy Transfers in Changes of State: Overview

This topic covers concepts, such as, Evaporation, Factors Affecting Evaporation, Increase in Kinetic Energy & Effect on Vibrations of Particles due to Temperature etc.

Important Questions on Energy Transfers in Changes of State

EASY
IMPORTANT

Difference between evaporation and vaporisation?

MEDIUM
IMPORTANT

The evaporation does not depends on wind speed.

MEDIUM
IMPORTANT

Explain the role of wind speed in evaporation.

EASY
IMPORTANT

Write the name of the process taking place in the following event.

Solid butter changing to liquid.

MEDIUM
IMPORTANT

Water at room temperature is a liquid.

MEDIUM
IMPORTANT

It is more comfortable to wear cotton clothes during summer.

HARD
IMPORTANT

Water kept in an earthen pot (matka) become cool during summers due to:

EASY
IMPORTANT

Condensed water changes into vapour.

MEDIUM
IMPORTANT

Water has very high heat capacity.

EASY
IMPORTANT

On increase in the temperature, liquid will-

EASY
IMPORTANT

What is the process of conversion of liquid into vapours, known as?

EASY
IMPORTANT

Evaporation occurs only on the surface of water.

EASY
IMPORTANT

When the velocity of gas molecules increases, their kinetic energy _____.

EASY
IMPORTANT

The rate of evaporation is affected by the speed of the wind.