# The standard reaction Gibbs energy for a chemical reaction

Question:

The standard reaction Gibbs energy for a chemical reaction at ansolute temperature $\mathrm{T}$ is given by

$\Delta_{\mathrm{r}} \mathrm{G}^{\mathrm{o}}=\mathrm{A}-\mathrm{Bt}$

Where $A$ and $B$ are non-zero constants. Which of the following is TRUE about this reaction?

1. Exothermic if $\mathrm{B}<0$

2. Exothermic if $\mathrm{A}>0$ and $\mathrm{B}<0$

3. Endothermic if $\mathrm{A}<0$ and $\mathrm{B}>0$

4. Endothermic if $\mathrm{A}>0$

Correct Option: , 4

Solution:

Theory