Задача 20426.

In the transition from state 3 state 1c receives gas 80 J of heat, and the work is done 30 J. In the transition from state 3 to state 1 on the gas work is performed 20 J. Determine the change in internal energy and warmth provided by the gas when going 3-1 .

Detailed solution with a short recording conditions, laws and formulas used in the decision, the withdrawal of the calculation formula and the answer.
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