Change of State

What do you mean by specific latent heat?

An unknown solid of mass $500 \text{g}$ of solid at $30{ }^o\text{C}$ is allowed to sink in $2 \text{L}$ of water at $5{ }^o\text{C}$. Calculate the specific heat of the unknown solid in the units of ${\text{cal g}}^{-1}{ }^o{C}^{-1}$if the final temperature of water becomes $20{ }^o\text{C}$. Specific heat of water is $1 {\text{cal g}}^{-1}{}^o{\text{C}}^{-1}$ and density of water is $1 \text{g/cc}$.

Give explanation of Melting by Molecular Model.

$2 \text{kg}$ water at $20{ }^o\text{C}$ is mixed with another liquid of mass $5 \text{kg}$ at ${50}^{ o}\text{C}$. After mixing, they attain a mutual temperature of ${40}^{ o}\text{C}$. If the specific heat capacity of water is $1 {\text{cal g}}^{-1}{}^o{\text{C}}^{-1}$, determine the specific heat capacity of the other liquid in the same unit.

What is solidification?

Define the boiling point of substance.

What is the thermal equilibrium?

What happens to a substance during fusion?

Identify the melting point of ice from the graph.

What is calorimeter?

Define specific latent heat by vaporization.

Describe the principle of method of mixtures.

State the principle of method of mixtures.

Describe Caloric theory of heat.

Caloric theory of heat was abandoned by Joule's experiment.

What does the principle of calorimetry state?

Conversion of liquid into vapours is called _____.

Condensation takes place when water becomes ice.

The transformation from one state of matter to another is known as change of state.

Change of water into ice, on freezing.

Hint: This state of matter has definite shape and volume.