An ideal gas has an adiabatic exponent \(\gamma .\) In some process its molar heat capacity varies as \(C=\alpha / T,\) where \(\alpha\) is a constant. Find: (a) the work performed by one mole of the gas during its heating from the temperature \(T_{0}\) to the temperature \(\eta\) times higher; (b) the equation of the process in the variables \(p, V\).