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One mole of an ideal gas \( \left(\mathrm{C}_{\mathrm{V}}=20 \mathrm{JK}^{-1} \mathrm{~mol}^{-1}\right) \)
P initially at STP is heated at constant volume to

W twice the initial temperature. Thus,
(1) \( \mathrm{W}=0, \mathrm{q}=5.46 \mathrm{~kJ} \)
(2) \( W=0, q=0 \)
(3) \( \mathrm{W}=-5.46 \mathrm{~kJ}, \mathrm{q}=5.46 \mathrm{~kJ} \)
(4) \( \mathrm{W}=5.46 \mathrm{~kJ}, \mathrm{q}=5.46 \mathrm{~kJ} \)
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