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Topic: Delta G and equilibrium, factors affecting equilibrium, Le Chatelier's principle· Equilibrium

Higher yield of NO in N_2(g) + O_2(g) ⇌ 2NO(g) can be obtained at[Δ H of the reaction = + 180.7 kJ mol^-1]A. higher temperatureB. lower temperatureC. higher concentration of N_2D. higher concentration of O_2Choose the correct answer from the options…

Higher yield of NO in \(\mathrm{N_2(g) + O_2(g) \rightleftharpoons 2NO(g)}\) can be obtained at

[\(\Delta H\) of the reaction = + 180.7 kJ \(\mathrm{mol^{-1}}\)]

A. higher temperature

B. lower temperature

C. higher concentration of \(\mathrm{N_2}\)

D. higher concentration of \(\mathrm{O_2}\)

Choose the correct answer from the options given below:

1. A, D only

2. B, C only

3. B, C, D only

4. A, C, D only

1 answer

Best answer

Answer: 4. A, C, D only

Key idea: Le Chatelier's principle.

  • \(\Delta H>0\) (endothermic): higher temperature favours NO, so A is right and B is wrong.
  • Adding more \(\mathrm{N_2}\) (C) or \(\mathrm{O_2}\) (D) shifts equilibrium forward.

A, C, D: option (4). (Pressure has no effect as \(\Delta n_g=0\).)

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report
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