JEE Main 20268 Apr, Evening shiftPhysicsMediumThermodynamics163× since 2002
One mole of diatomic gas having rotational modes only is kept in a cylinder with a piston system. The cross-section area of the cylinder is 4 cm. The gas is heated slowly to raise the temperature by 1.2 °C during which the piston moves by 25 mm. The amount of heat supplied to the gas is ______ J. (Atmospheric pressure = 100 kPa, J/mol.K) (Neglect mass of the piston)