Significance of Constant Pressure and Constant Volume
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Baoying Li 1B
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Significance of Constant Pressure and Constant Volume
When calculating the change of entropy and enthalpy, when do we consider the situation of constant pressure and constant volume? What is the difference?
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nicolely2F
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Re: Significance of Constant Pressure and Constant Volume
From what I've seen in the textbook, the questions will most likely clearly state whether we should consider constant volume / pressure / temperature / etc.
At constant pressure, use: ΔH = ΔU + P.ΔV
At constant volume, use: ΔH = Q(v) (that is, equal to the heat received by the system)
At constant pressure, use: ΔH = ΔU + P.ΔV
At constant volume, use: ΔH = Q(v) (that is, equal to the heat received by the system)
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