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Chemical Equilibrium - Physical Chemistry - Chemistry Previous Year Questions
Practice Chemical Equilibrium - Physical Chemistry - Chemistry previous year questions organised from real papers, with year-wise coverage and clear topic navigation.
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| Paper | Year / session | Questions in this view | Open |
|---|---|---|---|
| KCET 2026 | 2026 | 2 | View paper |
| KCET 2025 | 2025 | 3 | View paper |
| KCET 2023 | 2023 | 1 | View paper |
| KCET 2022 | 2022 | 1 | View paper |
| KCET 2021 | 2021 | 1 | View paper |
| KCET 2018 | 2018 | 1 | View paper |
| KCET 2017 | 2017 | 2 | View paper |
All Chemical Equilibrium previous year questions
Practice every matching question in batches of 20, with every available option.
2017 · Chemistry · Physical Chemistry · Chemical Equilibrium
KCET 2017
The reaction quotient ' $Q$ ' is useful inpredicting the direction of the reaction. Which of the following is incorrect?
2017 · Chemistry · Physical Chemistry · Chemical Equilibrium
KCET 2017
The equilibrium constant for the reaction $\mathrm{N}_2(g)+\mathrm{O}_2(g) \rightleftharpoons 2 \mathrm{NO}(\mathrm{g})$ is $4 \times 10^{-4}$ at 2000 K . In presence of a catalyst the equilibrium is attained ten times faster. Therefore the equilibrium constant in presence of catalyst 2000 K is
2018 · Chemistry · Physical Chemistry · Chemical Equilibrium
KCET 2018
The relationship between $K_p$ and $K_c$ is $K_p=K_c(R T)^{\Delta n}$. What would be the value of $\Delta n$ for the reaction
\(\mathrm{NH}_4 \mathrm{Cl}(s) \rightleftharpoons \mathrm{NH}_3(g)+\mathrm{HCl}(g) ?\)
2021 · Chemistry · Physical Chemistry · Chemical Equilibrium
KCET 2021
For the reaction,
$$A(g)+B(g) \rightleftharpoons C(g)+D(g) ; \Delta H=Q \mathrm{~kJ}$$
The equilibrium constant cannot be disturbed by
2022 · Chemistry · Physical Chemistry · Chemical Equilibrium
KCET 2022
1 mole of \(\mathrm{HI}\) is heated in a closed container of capacity of \(2 \mathrm{~L}\). At equilibrium half a mole of \(\mathrm{HI}\) is dissociated. The equilibrium constant of the reaction is
2023 · Chemistry · Physical Chemistry · Chemical Equilibrium
KCET 2023
At \(500 \mathrm{~K}\), for a reversible reaction \(A_2(g)+B_2(g) \rightleftharpoons 2 A B(g)\) in a closed container, \(K_C=2 \times 10^{-5}\). In the presence of catalyst, the equilibrium is attaining 10 times faster. The equilibrium constant \(K_C\) in the presence of catalyst at the same temperature is
2025 · Chemistry · Physical Chemistry · Chemical Equilibrium
KCET 2025
According to Le Chatelier's principle, in the reaction $\mathrm{CO}(\mathrm{g})+3 \mathrm{H}_2(\mathrm{~g}) \rightleftharpoons \mathrm{CH}_4(\mathrm{~g})+\mathrm{H}_2 \mathrm{O}(\mathrm{g})$, the formation of methane is favoured by
(a) Increasing the concentration of CO
(b) Increasing the concentration of $\mathrm{H}_2 \mathrm{O}$
(c) Decreasing the concentration of $\mathrm{CH}_4$
(d) Decreasing the concentration of $\mathrm{H}_2$
2025 · Chemistry · Physical Chemistry · Chemical Equilibrium
KCET 2025
Which of the following statements is/are true about equilibrium?
(a) Equilibrium is possible only in a closed system of at a given temperature
(b) All the measurable properties of the system remain constant at equilibrium
(c) Equilibrium constant for the reverse reaction is the inverse of the equilibrium constant for the reaction in the forward direction.
2025 · Chemistry · Physical Chemistry · Chemical Equilibrium
KCET 2025
The equilibrium constant at 298 K for the reaction $\mathrm{A}+\mathrm{B} \rightleftharpoons \mathrm{C}+\mathrm{D}$ is 100 . If the initial concentrations of all the four species were 1 M each, then equilibrium concentration of D (in $\mathrm{mol} \mathrm{L}^{-1}$ ) will be
2026 · Chemistry · Physical Chemistry · Chemical Equilibrium
KCET 2026
For the following gaseous reversible reaction:
$3\text{A}_{(g)} + \text{B}_{(g)} \rightleftharpoons \text{A}_3\text{B}_{(g)} \quad (\Delta_r H = -q\text{ kJ})$. The amount of product $\text{A}_3\text{B}_{(g)}$ is affected by ____
$3\text{A}_{(g)} + \text{B}_{(g)} \rightleftharpoons \text{A}_3\text{B}_{(g)} \quad (\Delta_r H = -q\text{ kJ})$. The amount of product $\text{A}_3\text{B}_{(g)}$ is affected by ____
2026 · Chemistry · Physical Chemistry · Chemical Equilibrium
KCET 2026
For the reversible reaction,
$\text{N}_{2(g)} + 3\text{H}_{2(g)} \rightleftharpoons 2\text{NH}_{3(g)}$
When the partial pressure is measured in atmosphere, the value of $K_p$ at $500^\circ\text{C}$ is $1.44 \times 10^{-5}$. The value of $K_c$ when the concentration is expressed in mol L$^{-1}$ is:
$\text{N}_{2(g)} + 3\text{H}_{2(g)} \rightleftharpoons 2\text{NH}_{3(g)}$
When the partial pressure is measured in atmosphere, the value of $K_p$ at $500^\circ\text{C}$ is $1.44 \times 10^{-5}$. The value of $K_c$ when the concentration is expressed in mol L$^{-1}$ is: