A vessel is divided into two parts A and B by a fixed partition The walls of the vessel and the partition are made of a perfect

Question

A vessel is divided into two parts A and B by a fixed partition The walls of the vessel and the partition are made of a perfect heat insulating material There is a hole in the partition which can be opened and closed Initially the hole is kept closed an ideal gas is filled in the part A and the part B is evacuated Now the hole is opened for a short time and then closed as a result some of the gas enters the part B Now the hole is again opened and gas is allowed to flow through the hole until net flow of the gas through the hole ceases How does the temperature of the gas change during the first and the second opening of the hole a During both the first and the second openings the temperature decreases b During the first opening the temperature remains constant but during the second opening the temperature decreases c During the first opening the temperature remains constant but during the second opening the temperature increases During both the first and the second openings the temperature remains constant A

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