1.

The value of Delta H and Delta S for five different reaction are given below. |{:("Reaction",Delta H(kJ mol^(-)),Delta S(JK^(-)mol^(-))),(I,+98.0,+14.8),(II,+55.5,+14.8),(III,+28.3,-84.8),(IV,-40.5,+24.6),(V,+34.7,"0.0"):}| On the basis of these values, predict which one of these will be spontaneous at all temperature?

Answer»

Reaction I
Reaction II
Reaction III
Reaction IV

Solution :A SPONTANEOUS PROCESS is accompanied by decrease in enthalpy and increase in ENTROPY means `DeltaH` is NEGATIVE and `DeltaS` is positive.


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