A system expands by 0.75 m3 at a constant pressure of 125 kPa. Find the heat that
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A system expands by 0.75 m3 at a constant pressure of 125 kPa. Find the heat that flows into or out of the system if its internal energy
(a) Increases by 65 kJ
(b) Decreases by 33 kJ. In each case, give the direction of heat flow.
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