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NEET 2025
Exam
NEET
Year
2025
Subject
Chemistry
Chapter
Chemical Equilibrium

NEET 2025 · Chemistry · Chemical Equilibrium

Higher yield of NO in N_2(~g)+O_2(~g) leftharpoons 2 NO(g) can be...

Higher yield of NO in N2( g)+O2( g)⇌2NO(g)\mathrm{N}_2(\mathrm{~g})+\mathrm{O}_2(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NO}(\mathrm{g}) can be obtained at [ ΔH\Delta \mathrm{H} of the reaction =+180.7 kJ mol−1=+180.7 \mathrm{~kJ} \mathrm{~mol}^{-1} ] A. higher temperature B. lower temperature C. higher concentration of N2\mathrm{N}_2 D. higher concentration of O2\mathrm{O}_2 Choose the correct answer from the options given below :

Options

  1. AA, D only
  2. BB, C only
  3. CB, C, D only
  4. DA, C, D only

Correct answer

D. A, C, D only

Step-by-step solution

N2( g)+O2( g)⇌2NO(g);ΔH=+180.7 kJ mol−1(A)\mathrm{N}_2(\mathrm{~g})+\mathrm{O}_{2(\mathrm{~g})} \rightleftharpoons 2 \mathrm{NO}_{(g)} ; \Delta \mathrm{H}=+180.7 \mathrm{~kJ} \mathrm{~mol}^{-1} (\mathrm{A}) as T↑⇒\mathrm{T} \uparrow \Rightarrow reaction shifts forward (B)asT↓⇒as \mathrm{T} \downarrow \Rightarrow reaction shifts backward (C)as[N2]↑⇒as \left[\mathrm{N}_2\right] \uparrow \Rightarrow reaction shifts forward (D)as[O2]↑⇒as \left[\mathrm{O}_2\right] \uparrow \Rightarrow reaction shifts forward
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