Question

For a chemical reaction, $\Delta G$ will always be negative if

• A. $\Delta H$ and $T\Delta S$ both are positive
• B. $\Delta H$ and $T\Delta S$ both are negative
• C. $\Delta H$ is negative and $T\Delta S$ is positive
• D. $\Delta H$ is positive and $T\Delta S$ is negative

Answer 1

Answer: (C)

$\Delta H$ is negative and $T\Delta S$ is positive

$\Delta G$ will always be negative if, $\Delta H$ and $T\Delta S$ both are positive since $\Delta G=\Delta H-T\Delta S$.