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Question no. 14348

What are the respective heat capacity values Cp and Cv for monatomic gases expressed in kcal/kg Mole.°K________________?

Select your answer for: What are the respective heat capacity values Cp and Cv for monatomic gases expressed in kcal/kg Mole.°K________________?
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Answer: A. 5 & 3

Explanation

Monatomic ideal gases possess three translational degrees of freedom per molecule. Heat capacity at constant volume equals three calories per mole kelvin for monatomic gases. Heat capacity at constant pressure equals five calories per mole kelvin via Mayer's relation. Monatomic gases consist of single unbonded atoms such as helium neon and argon. Equipartition theorem assigns thermal energy equally across all available molecular degrees of freedom. Universal gas constant values convert between energy units and molar heat capacity scales.

Aero-thermodynamics uses specific heat ratios of monatomic gases for high speed flow calculations. Nuclear engineering coolant analysis incorporates noble gas heat capacities for reactor safety models. Chemical physics experiments verify molecular degree of freedom theories using heat capacity data. Values like three point nine eight seven apply to diatomic gases with rotational energy modes. Decimals such as one point nine eight seven represent gas constant multiples in specific unit systems. Flipped values violate the fundamental thermodynamic rule that constant pressure capacity exceeds volume capacity.

Subject
Engineering
Topic
—
Difficulty
medium

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