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Standard entropy of X(2) , Y(2) and XY(3...

Standard entropy of `X_(2)` , `Y_(2)` and `XY_(3)` are `60, 40 ` and `50JK^(-1)mol^(-1)` , respectively. For the reaction, `(1)/(2)X_(2)+(3)/(2)Y_(2)rarrXY_(3),DeltaH=-30KJ` , to be at equilibrium, the temperature will be:

A

500 K

B

750 K

C

1000 K

D

1250 K

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The correct Answer is:
B
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