For the given equilibrium reaction
$$ \mathrm{H}_2(\mathrm{~g})+\mathrm{I}_2(\mathrm{~g}) \rightleftharpoons 2 \mathrm{HI}(\mathrm{~g}) $$
Choose the correct equation to calculate $K_p$.
- A
$K_p=K_C$
- B
$K_p=K_C(R T)$
- C
$K_p=K_C(R T)$
- D
$K_p=K_C(R T)^2$
✓ Correct answer: A
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