The temperature at which a solid change into a liquid is called _____ point.

Convert the following temperatures to the Celsius scale: 
a. $293 \mathrm{K}$

b.$470 \mathrm{K}$? 

Match the items in column A with the items in column B.

Define the latent heat of fusion of ice. Give its value.

Why is ice at $0°\mathrm{C}$ more effective in cooling than the same quantity of water at $0°\mathrm{C}$?

Convert the following temperatures to the Kelvin scale:

a. $25°\mathrm{C}$

b. $373°\mathrm{C}$? 

Why does the temperature remain constant during the change of state?

Why is steam at $100°\mathrm{C}$ a more effective heating agent than water at $100°\mathrm{C}$?

Define the terms:

a. melting point

b. boiling point.

The quantity of heat required to change $1 \mathrm{kg}$ of a solid into liquid at atmospheric pressure at its melting point is called

The latent heat of vaporisation of water is _____.

The SI unit of latent heat of fusion is _____.

$\mathrm{A}: \mathrm{J} {\mathrm{kg}}^{-1} \mathrm{B}: \mathrm{J} {\mathrm{g}}^{-1}$ (Enter your correct answer as $\mathrm{A}$ or $\mathrm{B}$)