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(a) monoatomic
                      (b) diatomic
                      (c) triatomic
                      (d)polyatomic
               8      Number of degrees of freedom in rotational KE of monoatomic  gas molecule
                      (a) 0
                      (b) 1
                      (c)2
                      (d)3
               9      Define the mean free path of a gas molecule.
               10     Define degrees of a dynamical system. Derive the expression for total energy of a diatomic gas
                      molecule using Law of equipartition of energy.
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