LetCP and CV denote the molar specific heat capacities of an ideal gas at constant volume and constant pressure respectively. Then, among the following, the universal constant is

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Let $C_{P}$ and $C_{V}$ denote the molar specific heat capacities of an ideal gas at constant volume and constant pressure respectively. Then, among the following, the universal constant is

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C_{P} C_{V}

C_{P} - C_{V}

\frac{C_{P}}{C_{V}}

C_{P} + C_{V}

answer is C.

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Detailed Solution

Given that

C_{P} {,C}_{V}

are the specific heat capacities of an ideal gas at constant

pressure and constant volume then we get $C_{P} - C_{V} = R$

Where R is universal gas constant its value

$R = 0.0821 lit atm {mol}^{- 1} k^{- 1}$

$= 8.3 J {mol}^{- 1} K^{- 1}$

$= 2 cal {mol}^{- 1} k^{- 1}$

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