Question 26
Energy ChangesA reaction takes place spontaneously if
- A.ΔG = O
- B.ΔS < O and ΔH > O
- C.ΔH < TΔS
- D.ΔG > O
Show the answer and explanation
Answer: C (ΔH < TΔS)
Explanation
ΔG = ΔH − TΔS, and a reaction is spontaneous when ΔG is negative. That happens when ΔH is less than TΔS.