For the reaction 2A_((g)) + B_((g)) to 2D_((g)) DeltaU^( Theta ) = -10.5 "kJ" and S^( Theta ) =-44.1 "JK"^(-1) Calculate Delta G^( Theta ) for the reaction, and predict whether the reaction may occur spontaneously.

For the reaction 2A_((g)) + B_((g)) to 2D_((g)) DeltaU^( Theta ) = -1

1.	For the reaction 2A_((g)) + B_((g)) to 2D_((g)) DeltaU^( Theta ) = -10.5 "kJ" and S^( Theta ) =-44.1 "JK"^(-1) Calculate Delta G^( Theta ) for the reaction, and predict whether the reaction may occur spontaneously.
Answer» Solution :`Deltan_((g)) = 2-3 = -1` `Delta H = Delta U + Deltan_((g)) "RT"` `= - 10.5 + (-1) (8.314 XX 10^(-3) ) (298)` `= -10.5 - 2.48 = - 12.98 "kJ"` `Delta G = Delta H- T Delta S` `= -12.98 - 298 (-44.1 xx 10^(-3) )` `= - 12.98 "kJ" + 13.14 "kJ" = 0.16 "kJ"` `Delta G` is positive, so the reaction may not occur SPONTANEOUSLY.