A cylindrical container 80 cm long is separated into two compartments by a thin piston, originally clamped in position 30 cm from the left end. The left compartment is filled with one mole of He at a pressure of 5 atm; the right compartment is filled with Ar at 1 atm. These gases may be considered ideal. The cylinder is submerged in 1 liter of water, and the entire system is insulated from the surroundings and is initially at the uniform temperature of 25 C. The heat capacities of the cylinder and piston may be neglected. When the piston is unclamped, a new equilibrium state is reached with the piston in a new position. a. What is the change in temperature of the water? b. How far from the left end of the cylinder will the piston come to rest? c. What is the increase in total entropy for this isolated system?