In which of the following reactions, standard entropy change is positive and standard Gibb's energy change decreases sharply with increasing temperature?
Gibb's free energy (? G) -
Gibb's free energy
enthalpy of reaction
C graphite +
As amount of geseous substancance is increasing in product, thus is positive for this reaction, and we know that . As is positive thus increase in tempreature will make more negative and will decrease.