A balloon holds 5.00 mol of a mono-atomic gas at a temperature of 5.00oC and at a pressure of 1.20 atm. The gas isothermally absorbs 104.6 kJ of heat from a 1.00 kg bucket of water at 80.0oC. a) (8 pts) Find the change in entropy of the entire system (gas + water) b) (2 pts) What are the initial and final volume of the gas?