Question

For the reaction,
$2C_2{H}_{2\left(g\right)}+5O_{2\left(g\right)}\rightleftharpoons 4C{O}_{2\left(g\right)}+2H_2{O}_{\left(g\right)}△H=-ve$
Identify the options which are not correct if the concentration of $C{O}_{2\left(g\right)}$ at equilibrium is to be increased.

• A. The temperature should be increased in a closed rigid container
• B. The pressure at equilibrium should be increased keeping the temperature same.
• C. The volume of the container should be increased keeping the temperature same.
• D. Inert gas should be added at constant pressure and temperature conditions.

Answer 1

Answer: (A), (C), (D)

The correct options are
A The temperature should be increased in a closed rigid container
C The volume of the container should be increased keeping the temperature same.
D Inert gas should be added at constant pressure and temperature conditions.

$2C_2{H}_{2\left(g\right)}+5O_{2\left(g\right)}\rightleftharpoons 4C{O}_{2\left(g\right)}+2H_2{O}_{\left(g\right)}△H=-ve$
A) It is an exothermic reaction and hence the temperature must be decreased.
B) $\Delta n=-1$ Hence increasing the pressure increases the formation of $C{O}_2$
c)$\Delta n=-1$ Hence increasing the volume decreases the formation of $C{O}_2$
d) )$\Delta n=-1$ addtion of inert gases at constant pressure decreases the formation of $C{O}_2$ due to decrease in partial pressure.