The standard reaction Gibbs energy for a chemical reaction at an absolute temperature T is given by
Where A and B are non -zero constants. Which of the following is TRUE about this reaction ?
Endothermic if A < 0 and B > 0
Exothermic if B < 0
Exothermic if A > 0 and B < 0
Endothermic if A > 0
Gibb's free energy (Δ G) -
- wherein
Gibb's free energy
enthalpy of reaction
entropy
temperature
Δ G of equilibrium -
- wherein
At Equilibrum
and
Spontanous process -
- wherein
For spontanouse process must be negative.
Formula
Endothermic if A < 0 and B > 0
Option 2)Exothermic if B < 0
Option 3)Exothermic if A > 0 and B < 0
Option 4)Endothermic if A > 0
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