If a system expands in volume by an amount V (m 3 ) against a constant restraining
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If a system expands in volume by an amount ΔV (m3) against a constant restraining pressure P(N/m2), a quantity PΔV(J) of energy is transferred as expansion work from the system to its surroundings. Suppose that the following four conditions are satisfied for a closed system: (a) the system expands against a constant pressure (so that ΔP = 0); (b) ΔEk = 0: (c) ΔEp = 0: and (d) the only work done by or on the system is expansion work. Prove that under these conditions, the energy balance simplifies to Q = ΔH.
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Related Book For
Elementary Principles of Chemical Processes
ISBN: 978-0471720638
3rd Edition
Authors: Richard M. Felder, Ronald W. Rousseau
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