Change of State

IMPORTANT

Change of State: Overview

This Topic covers sub-topics such as Latent Heat, Deposition, Melting Point of Substances, Temperature Versus Heat Graph for Heating of Ice, Vaporisation of Substances and, Fusion of Substances

Important Questions on Change of State

MEDIUM
IMPORTANT

An ice cube is heated and the variation of its temperature with time is shown. The process representing the conversion of water into steam is 

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HARD
IMPORTANT

When an ice cube is heated to vapour, in which all situations, will it have two states at the same temperature? Explain.

HARD
IMPORTANT

An ice cube is kept on the gas stove in a tumbler. It is heated with a gas. What will happen to it after some time? Explain the change of states associated with this.

EASY
IMPORTANT

What happens to substance during vaporization?

EASY
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Evaporation is the process of changing liquid into vapor,

EASY
IMPORTANT

What is the process of conversion of substances from their vapour state to a solid state upon cooling called? 

EASY
IMPORTANT

What is vaporisation?

EASY
IMPORTANT

Ice melts when energy in the form of ____ is supplied

EASY
IMPORTANT

A block of ice at -10°C is slowly heated and converted to steam at 100°C. Which of the following curves represent the phenomenon qualitatively?

EASY
IMPORTANT

Choose the odd one out.

EASY
IMPORTANT

Choose the odd one out.

EASY
IMPORTANT

The process in which a solid is converted to gaseous state is called _____.

MEDIUM
IMPORTANT

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Identify the part representing latent heat of vaporization in the temperature vs heat graph for melting of ice.

EASY
IMPORTANT

Liquid and solid states of a substance co-exist in thermal equilibrium during the process of:

MEDIUM
IMPORTANT

During the process of fusion:

EASY
IMPORTANT

Which material has a high latent heat of fusion particular to its composition?

EASY
IMPORTANT

A block of ice at -10 °C is slowly heated and converted to steam at 100 °C. Which of the following curves represent the phenomenon qualitatively: