Question

Consider the values of `DeltaH("in" kJ mol^(-))` and for `DeltaS("in" mol^(-)K^(-1))` given for four different reactions. For which reaction will `DeltaG` increases the most (becoming more positive) when the temperature is increased form `0^(@)C "to" 25^(@)C`?
A. `DeltaH^(@)=50,DeltaS^(@)=50`
B. `DeltaH^(@)=90,DeltaS^(@)=20`
C. `DeltaH^(@)=-20,DeltaS^(@)=-50`
D. `DeltaH^(@)=-90,DeltaS^(@)=-20`

Answer 1

Correct Answer - C
Use the relation `DeltaG^(@)=DeltaH^(@)-TDeltaS^(@)`