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NEET levelSingle correct optionDifficulty 1 of 3td019

For one mole of an ideal gas, $C_{P} - C_{V}$ equals

A $R /2$
B $R$
C $RT$
D $γ R$

Answer: B

Since

H = U + RT

per mole,

C_{P} = C_{V} + R

(Mayer's relation), so

C_{P} - C_{V} = R

.

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