A certain mass of a pure substance undergoes an irreversible process from state 1 to state 2, the path of the process being a straight line on the T-s diagram. Calculate heat transfer & work done. T1 = 330 K, T2 = 440 K; U1=170 kJ, U2 = 190 kJ; H1=220 kJ, H2=247 kJ, and S1 = 0.23 kJ/K nd S2 = 0.3 kJ/K where T, U, H and S represent temperature, internal energy, enthalpy and entropy respectively.