The graph in the figure shows a pv diagram for 330 moles of, Ask an Expert

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The graph in the figure shows a pV diagram for 3.30 moles of ideal helium (He) gas. Part ca of this process is isothermal.

1979_A pV diagram.jpg

How much heat entered or left the He during segments ab, bc, and ca?

By how much did the internal energy of the He change from a to b, from b to c, and from c to a?

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