If \( C_{p} \) and \( C_{V} \) denote the specific heats of nitrogen per unit mass at constant p....

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If \( C_{p} \) and \( C_{V} \) denote the specific heats of nitrogen
\( \mathrm{P} \)
per unit mass at constant pressure and constant volume respectively, then
(1) \( C_{P}-C_{V}=28 R \)
(2) \( C_{P}-C_{V}=R / 28 \)
(3) \( C_{P}-C_{V}=R / 14 \)
(4) \( C_{P}-C_{V}=R \)


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