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For the irreversible reaction, Ca+ 2C = Ca C2 , Δ H°298 = - 60000 J . mole-1 . If a system initially containing 2 moles of calcium, 3 moles of carbon and 1 mole of calcium carbide is allowed to react to completion, the heat evolved at 298 K will be | |
A. | 30000 J [Wrong Answer] |
B. | 60000 J [Wrong Answer] |
C. | 90000 J [Correct Answer] |
D. | 240000 J [Wrong Answer] |