Equilibrium Question 591
Question: Consider the following reversible reaction at equilibrium, $ 2H_2{O_{(g)}} $ ⇌ $ 2{H_{2(g)}}+{O_{2(g)}} $ ; $ \Delta H=241.7,kJ $ Which one of the following changes in conditions will lead to maximum decomposition of $ H_2{O_{(g)}} $ [Kerala PMT 2004]
Options:
A) Increasing both temperature and pressure
B) Decreasing temperature and increasing pressure
C) Increasing temperature and decreasing pressure
D) Increasing temperature at constant pressure
Show Answer
Answer:
Correct Answer: C
Solution:
$ \Delta H $ is positive so reaction move forward by increase in temperature & value of $ \Delta n=3-2=+1 $ is positive so it forward with decrease in pressure.
