Q69 / 180 · AIIMS 2012 · Chemistry

$\frac{K_p}{K_c}$for following reaction will be

  • A
    $R T$
  • B
    $\frac{1}{R T}$
  • Correct answer
    C
    $\frac{1}{\sqrt{R T}}$
  • D
    $\frac{R T}{2}$

Solution

$\Delta_{n_g}=n_p-n_r=1-\frac{3}{2}$ $\Delta_{n_g}=\frac{-1}{2}$. Hence $K_p=K_c(R T)^{-1 / 2}$ $\frac{K_p}{K_c}=\frac{1}{(R T)^{1 / 2}}=\frac{1}{\sqrt{R T}}$

Hence, the correct answer is option: 'C'.

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