Part A Calculate the specific heat capacity 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. Express your answer in J/(kg · K). V AZO ? cy = J/(kg - K) Submit Request Answer Part B The actual specific heat capacity of water vapor at low pressures is about 2000J/(kg · K). Calculate the molar heat capacity for actual water vapor. Express your answer in J/(kg · K). Cy = J/(kg · K)

Part A Calculate the specific heat capacity 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. Express your answer in J/(kg · K). V AZO ? cy = J/(kg - K) Submit Request Answer Part B The actual specific heat capacity of water vapor at low pressures is about 2000J/(kg · K). Calculate the molar heat capacity for actual water vapor. Express your answer in J/(kg · K). Cy = J/(kg · K)

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Maxwell speed distribution

Maxwell-Boltzmann distribution or commonly known as Maxwell speed distribution, explains the division of the energy levels of the molecules of an ideal gas on the basis of the statistical theory. In 1859, Scottish physicist James Clerk Maxwell established the context for the distribution of molecular velocities for random molecules moving in a closed environment. This theory was generalized in 1871 by German physicist Ludwig Boltzmann. He improvised the theory to express the distribution of energy levels among different molecules.

Question

Part A
Calculate the specific heat capacity 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.
Express your answer in J/(kg · K).
?
Cy =
J/(kg - K)
Submit
Request Answer
Part B
The actual specific heat capacity of water vapor at low pressures is about 2000J/(kg · K). Calculate the molar heat capacity for actual water vapor.
Express your answer in J/(kg · K).
?
Cy =
J/(kg · K)

Part C
Compare this with your calculation and find the actual role of vibrational motion. Calculate the differece between the actual molar heat capacity from part B and the molar heat capacity
you used in part A.
Express your answe in terms of gas constant R.
?
CyB – CVA =
R

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