\( 5 \mathrm{~mol} \) of oxygen is heated at constant volume from \...

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\( 5 \mathrm{~mol} \) of oxygen is heated at constant volume from \( 10^{\circ} \mathrm{C} \)
P to \( 20^{\circ} \mathrm{C} \). Given : \( C_{p}=8 \mathrm{cal} / \mathrm{mol} /{ }^{\circ} \mathrm{C} \) and \( R=8.36 \mathrm{~J} / \mathrm{mol} /{ }^{\circ} \mathrm{C} \). The

W amount of heat consumed by oxygen is :
(A) \( 100 \mathrm{cal} \)
(B) \( 200 \mathrm{cal} \)
(C) \( 300 \mathrm{cal} \)
(D) \( 400 \mathrm{cal} \)
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