Question

In the reaction, $H_2(g)+I_2(g)2HI(g)$. Which of the following is correct ?

• A. $K_p=K_c$
• B. $K_p>K_c$
• C. $K_p<K_c$
• D. $K_p\ge K_c$

Answer 1

Answer: (A)

For equation $H_2(g)+I_2(g)\rightleftharpoons 2HI$, the value of
$\Delta n=2-(1+1)=0$
Hence, By using formulae $K_p=K_c(RT{)}^{\Delta n}$
$K_p=K_c(RT{)}^0$
$K_p=K_c$