Calculate the entropy change if 0.01 1m of a perfect gas at 273K and I atm pressure is compressed to 10 atm pressure. The heat capacity of gaseous Argon at constant pressure is 20.8 ] K-mol-!. Estimate the entropy change when one mole of Argon is heated from 300K to 1200K at I atm pressure. Estimate the entropy change when one mole of water is vaporized at 373K. The enthalpy change on vaporization is 40.7 kJ mol'' at this temperature