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JEE Main201912 Jan 2019Morning ShiftChemistryThermodynamics (C)Actual

For a diatomic ideal gas in a closed system, which of the following plots does not correctly describe the relation between various thermodynamic quantities?

Correct answer

2

Step-by-step solution

C p is molar heat capacity at constant pressure. Since the quantity is defined at constant pressure, it does not vary with pressure. At higher temperatures, the rotational degree of freedom becomes active. C_P= 7 2 R (Independent of P ) C _ V = 5 2 R (Independent of V ) C _ V depends on T and independent on V . C _ P depends on T and independent on P .

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