Equilibrium Question 142
Question: $ \Delta G^{0}(HI,,g)\cong +1.7,kJ $ . What is the equilibrium constant at $ 25^{o}C $ for $ 2HI(g) $ D $ H_2(g)+I_2(g) $ [KCET 1992]
Options:
A) 24.0
B) 3.9
C) 2.0
D) 0.5
Show Answer
Answer:
Correct Answer: D
Solution:
$ \Delta G^{o}=-2.303\times 8.314\times {10^{-3}}\times 298\log ,K_{p} $
$ 1.7=-2.303\times 8.314\times {10^{-3}}\times 298\times \log ,K_{p} $
$ K_{p}=0.5 $
