What will be the value of work done at constant pressure in a pressure volume system?
Correct answer: C. W = P ΔV
- A. W = P V
- B. W = ΔP V
- C. W = P ΔV
- D. W = P + ΔV
Explanation
W = P ΔVThis is called pressure-volume work and is positive when it is done on the system.
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About Thermochemistry and Energetics of Chemical Reactions
Thermochemistry measures energy changes in chemical reactions and distinguishes exothermic from endothermic processes. Work covers systems, surroundings and state functions, internal energy, the first law of thermodynamics, enthalpy and Hess's law, including the sign conventions used when heat enters or leaves a system.
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