(a) Calculate the specific heat at constant volume of water vapor,assuming the nonlinear triatomic molecule has three translational and threerotational degrees of freedom and that vibrational motion does not contribute.The molar mass of water is 18.0 g/mol. (b) The actual specific heatof water vapor at low pressures is about 2000 J/kg . K. Compare this withyour calculation and comment on the actual role of vibrational motion.

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(a) Calculate the specific heat at constant volume of water vapor,
assuming the nonlinear triatomic molecule has three translational and three
rotational degrees of freedom and that vibrational motion does not contribute.
The molar mass of water is 18.0 g/mol. (b) The actual specific heat
of water vapor at low pressures is about 2000 J/kg . K. Compare this with
your calculation and comment on the actual role of vibrational motion.

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