A reaction occurs spontanecously if `:-`A. `TDeltaS lt DeltaH` and both `DeltaH and DeltaS` are +veB. `TDeltaS gt DeltaH` and both `DeltaH and DeltaS` are +veC. `TDeltaS = DeltaH` and both `DeltaH and DeltaS` are +veD. `TDeltaS gt DeltaH and DeltaH` is +ve and `DeltaS` is -ve

A reaction occurs spontanecously if `:-`A. `TDeltaS lt DeltaH` and bot

1.	A reaction occurs spontanecously if `:-`A. `TDeltaS lt DeltaH` and both `DeltaH and DeltaS` are +veB. `TDeltaS gt DeltaH` and both `DeltaH and DeltaS` are +veC. `TDeltaS = DeltaH` and both `DeltaH and DeltaS` are +veD. `TDeltaS gt DeltaH and DeltaH` is +ve and `DeltaS` is -ve
Answer» Correct Answer - B The spontaneity of a reaction is based upon the negative value of `DeltaG and DeltaG` is based upon T, `DeltaS and DeltaH` according to following equation (Gibbs Helmholtz equation) `DeltaG=DeltaH-TDeltaS` If the magnitude of `DeltaH-TDeltaS` If the magnitude of `DeltaH-TDeltaS` is negative, then the reaction is spontaneous when `TDeltaS gt DeltaH` or we can say that `DeltaH` and `DeltaS` are positive , then `DeltaG` is negative.

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A reaction occurs spontanecously if `:-`A. `TDeltaS lt DeltaH` and both `DeltaH and DeltaS` are +veB. `TDeltaS gt DeltaH` and both `DeltaH and DeltaS` are +veC. `TDeltaS = DeltaH` and both `DeltaH and DeltaS` are +veD. `TDeltaS gt DeltaH and DeltaH` is +ve and `DeltaS` is -ve

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