a) Determine the amount of energy transferred as heat required to melt 3 mol of ice at 0°C, heat the liquid water to 100°C, and then vaporize the liquid water at 100°C. All processes occur at 1 bar pressure.
b) Now condense the steam, cool it to 0°C, and freeze the liquid water at 0°C to create 3 mol of ice all under 1 bar of pressure. What is the entropy and enthalpy change for the entire process described in both parts a and b?