problem18_78

University Physics with Modern Physics with Mastering Physics (11th Edition)

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18.78: a) The two degrees of freedom associated with the rotation for a diatomic molecule account for two-fifths of the total kinetic energy, so ) 00 . 1 ( rot = = nRT K J. 10 49 . 2 ) K K)(300 mol J 3145 . 8 ( 3 × = b) 2 11 - 23 3 2 m) 10 (6.05 mol molecules 10 023 . 6 mol kg 10 0 . 16 2 2) L ( 2 × × × = = - m I . m kg 10 94 . 1 2 46
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