Equilibrium Question 653
Question: The reaction, $ 2S{O_{2(g)}}+{O_{2(g)}} $ ⇌ $ 2S{O_{3(g)}} $ is carried out in a 1 $ dm^{3} $ vessel and $ 2\ dm^{3} $ vessel separately. The ratio of the reaction velocities will be [KCET 2004]
Options:
A) $ 1:8 $
B) $ 1:4 $
C) $ 4:1 $
D) $ 8:1 $
Show Answer
Answer:
Correct Answer: D
Solution:
$ 2SO_2(g)+O_2(g) $ ⇌ $ 2SO_3(g) $ For $ 1dm^{3} $
$ R=k{{[SO_2]}^{2}}[O_2] $
$ R=K\ {{[ \frac{1}{T} ]}^{2}}[ \frac{1}{1} ]=1 $ For $ 2dm^{3} $
$ R=K\ {{[ \frac{1}{2} ]}^{2}}[ \frac{1}{2} ]=\frac{1}{8} $ So, the ratio is 8 : 1
