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Demystifying Entrance Exams
Which of the following is a possible explanation for the fact that Cp is always greater than Cv?
A rigid container does not conduct heat as well as one that can change shape.
Some of the energy is used to expand the container in order to maintain constant pressure.
There are generally fewer moles of gas when the pressure is kept constant than when the volume is kep constant.
There are generally more moles of gas when the pressure is kept constant than when the volume is kept constant.
