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In the figure, 2.31 mols of an ideal diatomic gas can go from a to c along either the direct (diagonal) path acor the indirect path abc. The scale of the vertical axis is set by pab = 6.08 kPa and pc = 2.99 kPa, and the scale of the horizontal axis is set by Vbc = 5.73 m3 and Va = 2.39 m3. (The molecules rotate but do not oscillate.) During the transition directly from a to c.
(a) What is the change in internal energy of the gas?
(b) how much energy is added to the gas as heat (still along the direct path from a to c)?
(c) How much heat is required if the gas goes from a to c along the indirect path abc?
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