Задача 20326.

A mass of nitrogen of 6 g at a pressure of 0.1 MPa had a volume of 5 liters, and at a pressure of 0.3 MPa - a volume of 2 liters. The transition from the first state to the second was carried out in two stages: first isochoric, then isobaric. Determine the change in entropy of the gas.

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