Problem 3: A cylinder contains an ideal gas and is closed by a movable piston. The cylinder is kept submerged in an ice-water mixture. The piston is quickly pushed down from position 1 to position 2 and then held at position 2 until the gas is again at the temperature of the ice-water mixture; it then is slowly raised back to position 1. Below is a p-V diagram for the process. Pressure V₂ Volume Ice and water Start V₁ If 100 g of ice is melted during the cycle, how much work has been done on the gas?

Problem 3: A cylinder contains an ideal gas and is closed by a movable piston. The cylinder is kept submerged in an ice-water mixture. The piston is quickly pushed down from position 1 to position 2 and then held at position 2 until the gas is again at the temperature of the ice-water mixture; it then is slowly raised back to position 1. Below is a p-V diagram for the process. Pressure V₂ Volume Ice and water Start V₁ If 100 g of ice is melted during the cycle, how much work has been done on the gas?