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AIIMS 2005
Exam
AIIMS
Year
2005
Subject
Chemistry
Chapter
Chemical Equilibrium

AIIMS 2005 · Chemistry · Chemical Equilibrium

For reaction, 2 NOCl_ (g) leftharpoons 2 NO_ (g) +Cl_ 2(g) , K_c at...

For reaction, 2NOCl(g)⇌2NO(g)+Cl2(g)2 \mathrm{NOCl}_{(g)} \rightleftharpoons 2 \mathrm{NO}_{(g)}+\mathrm{Cl}_{2(g)}, KcK_c at 427∘C427^{\circ} \mathrm{C} is 3×10−6 L mol−13 \times 10^{-6} \mathrm{~L} \mathrm{~mol}{ }^{-1}. The value of KpK_p is nearly

Options

  1. A7.50×10−57.50 \times 10^{-5}
  2. B2.50×10−52.50 \times 10^{-5}
  3. C2.50×10−42.50 \times 10^{-4}
  4. D1.75×10−41.75 \times 10^{-4}.

Correct answer

D. 1.75×10−41.75 \times 10^{-4}.

Step-by-step solution

2 \mathrm{NOCl}_{(g)} \rightleftharpoons 2 \mathrm{NO}_{(g)}+\mathrm{Cl}_{2(g)}K_p=K_c(R T)^{\Delta n} Kp=3×10−6(0.0821×700)=172.41×10−6=1.72×10−4\begin{aligned}K_p=3 \times10^{-6}(0.0821 \times700) & =172.41 \times10^{-6} \\ & =1.72 \times10^{-4} \end{aligned}
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