Fundamentholfundamenthol
JEE Main2019Physics
Q.

The specific heats, CP and CV of a gas of diatomic molecules, A, are given (in units of J mol-1K-1) by 29 and 22, respectively. Another gas of diatomic molecules, B, has the corresponding values 30 and 21. If they are treated as ideal gases, then :

  1. A

    A is rigid but B has a vibrational mode.

  2. B

    A has a vibrational mode but B has none.

  3. C

    Both A and B have a vibrational mode each.

  4. D

    A has one vibrational mode and B has two

Solution

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