Q13 / 160 · TS EAMCET 2020 (14 Sep Shift 1) · Chemistry
For the given equilibrium reaction
$\mathrm{H}_2(g)+\mathrm{I}_2(g) \rightleftharpoons 2 \mathrm{HI}(g)$
Choose the correct equation to calculate $K_p$.
- Correct answerA$K_p=K_C$
- B$K_p=K_C(R T)$
- C$K_p=K_C(R T)$
- D$K_p=K_C(R T)^2$
Solution
We know, $K_p=K_C(R T)^{\Delta n_g}$
For the given equilibrium reaction,
$\begin{aligned}
& \mathrm{H}_2(g)+\mathrm{I}_2(g) \rightleftharpoons 2 \mathrm{HI}(g), \Delta n_g=2-(\mathrm{l}+\mathrm{l})=0 \\
\Rightarrow & K_p=K_C \times(R T)^0=K_C
\end{aligned}$
Hence, the correct answer is option: 'A'.