25. (a) Eq. 19-24 gives ()2321avg31.3810J/K (273K) 5.6510J .2K−−=×=×(b) For 373 K,T=the average translational kinetic energy is 21avg7.7210J .K−(c) The unit mole may be thought of as a (large) collection: 6.02 ×1023molecules of ideal gas, in this case. Each molecule has energy specified in part (a), so the large
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