Question

Which of the following correctly represents the physical significance of Gibbs energy change?
A. `-DeltaG=W_("compression")`
B. `-DeltaG=W_("expansion")`
C. `DeltaG=-W_("expansion")=W_("non-expansion")`
D. `DeltaG=W_("expansion")`

Answer 1

Correct Answer - B
A decrease in gibbs energy results in useful work done by the system, i.e. work of expansion `(-W_("expansion"))` or `-DeltaG=W_("expansion")`