1
JEE Advanced 2023 Paper 1 Online
Numerical
+4
-0
The plot of $\log k_f$ versus $1 / T$ for a reversible reaction $\mathrm{A}(\mathrm{g}) \rightleftharpoons \mathrm{P}(\mathrm{g})$ is shown.
![JEE Advanced 2023 Paper 1 Online Chemistry - Chemical Equilibrium Question 1 English](https://app-content.cdn.examgoal.net/fly/@width/image/1liir07s6/dab28081-bff3-4a0b-b1a3-06d4b0a17ba1/3af77060-0391-11ee-94c1-c5ddbb3cc6a9/file-1liir07s7.png?format=png)
Pre-exponential factors for the forward and backward reactions are $10^{15} \mathrm{~s}^{-1}$ and $10^{11} \mathrm{~s}^{-1}$, respectively. If the value of $\log K$ for the reaction at $500 \mathrm{~K}$ is 6 , the value of $\left|\log k_b\right|$ at $250 \mathrm{~K}$ is ______.
$$ \begin{aligned} & {[K=\text { equilibrium constant of the reaction }} \\\\ & k_f=\text { rate constant of forward reaction } \\\\ & \left.k_b=\text { rate constant of backward reaction }\right] \end{aligned} $$
![JEE Advanced 2023 Paper 1 Online Chemistry - Chemical Equilibrium Question 1 English](https://app-content.cdn.examgoal.net/fly/@width/image/1liir07s6/dab28081-bff3-4a0b-b1a3-06d4b0a17ba1/3af77060-0391-11ee-94c1-c5ddbb3cc6a9/file-1liir07s7.png?format=png)
Pre-exponential factors for the forward and backward reactions are $10^{15} \mathrm{~s}^{-1}$ and $10^{11} \mathrm{~s}^{-1}$, respectively. If the value of $\log K$ for the reaction at $500 \mathrm{~K}$ is 6 , the value of $\left|\log k_b\right|$ at $250 \mathrm{~K}$ is ______.
$$ \begin{aligned} & {[K=\text { equilibrium constant of the reaction }} \\\\ & k_f=\text { rate constant of forward reaction } \\\\ & \left.k_b=\text { rate constant of backward reaction }\right] \end{aligned} $$
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2
JEE Advanced 2020 Paper 1 Offline
Numerical
+4
-0
Consider the reaction,
A $$\rightleftharpoons $$ B
at 1000 K. At time t', the temperature of the system was increased to 2000 K and the system was allowed to reach equilibrium. Throughout this experiment the partial pressure of A was maintained at 1 bar. Given, below is the plot of the partial pressure of B with time. What is the ratio of the standard Gibbs energy of the reaction at 1000 K to that at 2000 K?
![JEE Advanced 2020 Paper 1 Offline Chemistry - Chemical Equilibrium Question 3 English](https://app-content.cdn.examgoal.net/fly/@width/image/1kx9uq4ya/f5fdd02e-3a50-437b-9b73-617f1eeae4d1/2e675720-5eec-11ec-b1f6-5f1771b464e3/file-1kx9uq4yb.png?format=png)
A $$\rightleftharpoons $$ B
at 1000 K. At time t', the temperature of the system was increased to 2000 K and the system was allowed to reach equilibrium. Throughout this experiment the partial pressure of A was maintained at 1 bar. Given, below is the plot of the partial pressure of B with time. What is the ratio of the standard Gibbs energy of the reaction at 1000 K to that at 2000 K?
![JEE Advanced 2020 Paper 1 Offline Chemistry - Chemical Equilibrium Question 3 English](https://app-content.cdn.examgoal.net/fly/@width/image/1kx9uq4ya/f5fdd02e-3a50-437b-9b73-617f1eeae4d1/2e675720-5eec-11ec-b1f6-5f1771b464e3/file-1kx9uq4yb.png?format=png)
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3
JEE Advanced 2019 Paper 1 Offline
Numerical
+3
-0
For the following reaction, the equilibrium constant Kc at 298 K is 1.6 $$ \times $$ 1017.
Fe2+(aq) + S2-(aq) ⇌ FeS(s)
When equal volumes of
0.06 M Fe2+(aq) and 0.2 M S2$$ - $$(aq)
solutions are mixed, the equilibrium concentration of Fe2+(aq) is found by Y $$ \times $$ 10$$ - $$17 M. The value of Y is .................
Fe2+(aq) + S2-(aq) ⇌ FeS(s)
When equal volumes of
0.06 M Fe2+(aq) and 0.2 M S2$$ - $$(aq)
solutions are mixed, the equilibrium concentration of Fe2+(aq) is found by Y $$ \times $$ 10$$ - $$17 M. The value of Y is .................
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4
JEE Advanced 2018 Paper 1 Offline
Numerical
+3
-0
A closed tank has two compartments $$A$$ and $$B,$$ both filled with oxygen (assumed to be ideal gas). The partition separating the two compartments is fixed and is a perfect heat insulator (Figure $$1.$$). If the old partition is replaced by a new partition which can slide and conduct heat but does NOT allow the gas to leak across (Figure $$2$$), the volume (in $${m^3}$$) of the compartment A after the system attains equilibrium is ______________.
![JEE Advanced 2018 Paper 1 Offline Chemistry - Chemical Equilibrium Question 5 English](https://imagex.cdn.examgoal.net/V0rXLDRbV7MlKxJnL/Hn98dIzq0wYOIJ5igrlkjX9HKmr06/zDXgCFVmuPzajUFFxvZNtK/image.png)
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Questions Asked from Chemical Equilibrium (Numerical)
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