Question Detail

CHM 101 CHM 101 Past Questions Objective Question

Question

In the Haber process (N2(g) + 3 H2(g) 2 NH3(g)), what happens when excess NH3 is introduced such that Q > K?
Options
A Delta G becomes negative and more NH3 is synthesized
B Delta G becomes positive and NH3 decomposes into N2 and H2
Correct Answer
C The equilibrium constant K increases to compensate for excess NH3
D The reaction halts permanently because reactants are depleted
Correct Answer

Option B is the correct answer.

Detailed Explanation

When Q > K, ln(Q/K) > 0 and Delta G > 0 for the forward reaction, causing the reaction to spontaneously shift in reverse.

Hint

No hint available

Question Info