2. Which description is true of Gibbs free energy? Select all that apply. contributes to the overall system enthalpy

contributes to overall system entropy

allows for exergonic and spontaneous reaction when its value is less than 0

is available for work in a system when pressure and temperature are uniform throughout the system

goes to zero when a system is in equilibrium

3. What kinds of work are central to a cell’s metabolism? Select all that apply.

A. Transport work

B. Chemical work

C. Electrical work

D. Mechanical work

E. Exergonic work

4. What kind of reaction is indicated by a Gibbs free energy of <0? (one answer)

exergonic and nonspontaneous

Endergonic

Nonspontaneous

exergonic and