What is capacity of a container?

What do you mean by the term .capacity of the container?

Distinguish between the volume of liquid and capacity of a container.

What is vital capacity of our lungs?

Define (i) specific heat capacity (ii) Heat capacity (iii) Molar specific heat capacity at constant pressure

5g of a gas is contained in a rigid container and is heated from 15^@C to 25^@C . Specific heat capacity of the gas at constant volume is 0.172 cal g ^(-1)^@C^(-1) and the mechanical equivalent of heat is 4.2 J cal . Calculate the change in the internal energy of the gas.