When a sample of NO_2 is placed in a containe | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The reaction $2NO_{2(g)} \rightleftharpoons N_2O_{4(g)}$ is exothermic in the forward direction (formation of $N_2O_4$).According to Le Chatelier'

Vedclass · Accepted Answer

The reaction is exothermic and $NO_2$ is darker in colour than $N_2O_4$

Vedclass · Answer

(A) The reaction $2NO_{2(g)} \rightleftharpoons N_2O_{4(g)}$ is exothermic in the forward direction (formation of $N_2O_4$).According to Le Chatelier's principle,increasing the temperature shifts the equilibrium towards the endothermic direction (reverse),which produces more $NO_2$.Since the mixture is darker at high temperatures,$NO_2$ must be the darker-coloured gas compared to $N_2O_4$.Similarly,at low pressure,the equilibrium shifts towards the side with more moles of gas (the reactant side,$NO_2$),which also results in a darker colour.Therefore,the reaction is exothermic and $NO_2$ is darker in colour than $N_2O_4$.

When a sample of $NO_2$ is placed in a container,this equilibrium is rapidly established: $2NO_{2(g)} \rightleftharpoons N_2O_{4(g)}$. If this equilibrium mixture is a darker colour at high temperatures and at low pressure,which of these statements about the reaction is true?

Similar Questions

Which of the following equilibrium is not shifted by an increase in pressure?

Consider the heterogeneous equilibrium in a closed container:
$NH_4HS_{(s)} \rightleftharpoons NH_{3(g)} + H_2S_{(g)}$
If more $NH_4HS_{(s)}$ is added to the equilibrium,what will be the effect on the system?

For the equilibrium system $CO_{2(s)} \rightleftharpoons CO_{2(g)}$,$\Delta H = +ve$,what happens if the temperature is decreased?

For the reaction at equilibrium
$N_{2(g)} + 3H_{2(g)} \rightleftharpoons 2NH_{3(g)}$
On addition of an inert gas at constant pressure and constant temperature,which of the following changes is $NOT$ observed?

In the reaction $N_{2(g)} + 3H_{2(g)} \rightleftharpoons 2NH_{3(g)}; \Delta H = -93.6 \ kJ$,the yield of ammonia does not increase when:

Vedclass Test Series

Exam Paper Generator

Online Exam Module