1
WB JEE 2024
MCQ (Single Correct Answer)
+1
-0.25
Change Language

Which of the following statements is true about equilibrium constant and rate constant of a single step chemical reaction?

A
Equilibrium constant may increase or decrease but rate constant always increases with temperature.
B
Both equilibrium constant and rate constant increase with temperature.
C
Rate constant may increase or decrease but equilibrium constant always increases with temperature.
D
Both equilibrium constant and rate constant decrease with temperature.
2
WB JEE 2020
MCQ (Single Correct Answer)
+1
-0.25
Change Language
The equilibrium constant for the following reactions are given at 25$$^\circ $$C

$$2A$$ $$\rightleftharpoons$$ B + C, K1 = 1.0

$$2B$$ $$\rightleftharpoons$$ C + D, K2 = 16

$$2C + 2D$$ $$\rightleftharpoons$$ 2P, K3 = 25

The equilibrium constant for the reaction

P $$\rightleftharpoons$$ $$A + {1 \over 2}$$B at 25$$^\circ $$C is
A
$${1 \over 20}$$
B
20
C
$${1 \over 42}$$
D
21
3
WB JEE 2019
MCQ (Single Correct Answer)
+1
-0.33
Change Language
In the equilibrium, H2 + I2 $$\rightleftharpoons$$ 2HI, if at a given temperature the concentration of the reactants are increased, the value of the equilibrium constant, KC, will
A
increase
B
decrease
C
remain the same
D
cannot be predicted with certainty
4
WB JEE 2017
MCQ (Single Correct Answer)
+1
-0.25
Change Language
Equilibrium constants for the following reactions at 1200 K are given

2H2O(g) $$\rightleftharpoons$$ 2H2(g) + O2(g), K1 = 6.4 $$\times$$ 10$$-$$8

2CO2(g) $$\rightleftharpoons$$ 2CO(g) + O2(g), K2 = 1.6 $$\times$$ 10$$-$$6

The equilibrium constant for the reaction?

H2(g) + CO2(g) $$\rightleftharpoons$$ CO(g) + H2O(g) at 1200 K will be
A
0.05
B
20
C
0.2
D
5.0
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