a. Statement of Boyle’s law : For a fixed mass (number of moles ‘n’) of a gas at constant temperature, the pressure (P) of the gas is inversely proportional to the volume (V) of the gas.
OR
At constant temperature, the pressure of fixed amount (number of moles) of a gas varies inversely with its volume.
b. Statement for Charles’ law :
‘At constant pressure, the volume of a fixed mass of a gas is directly proportional to its temperature in Kelvin.
