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Standard entropy of X2 Y2 and XY3 are 60, 40 and 50 JK-1mol-1, respectively. For the reaction

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Standard entropy of X2 Y2 and XY3 are 60, 40 and 50 JK-1mol-1, respectively. For the reaction 1/2 x2 +3/2 y2 →xy3 ΔH =-30 kJ to be at equilibrium,the temperature will be 

(A) 1250 K 

(B) 500 K 

(C) 750 K 

(D) 1000 K

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Correct option (C) 750 K

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