1
WB JEE 2023
+1
-0.25 Which of the following would give a linear plot?

(k is the rate constant of an elementary reaction and T is temp. in absolute scale)

A
k vs T
B
k vs 1/T
C
ln k vs T
D
ln k vs 1/T
2
WB JEE 2023
+1
-0.25 For the reaction A + B $$\to$$ C, we have the following data:

Initial concentration of A (in molarity) Initial concentration of B (in molarity) Rate (initial)
(Relevant unit)
1 10 100
1 1 1
10 1 10

The order of the reaction with respect to A and B are

A
Not possible to tell with the given data.
B
First order with respect to both A and B.
C
First order with respect to A and second order with respect to B.
D
Second order with respect to A and first order with respect to B.
3
WB JEE 2021
+1
-0.25 The equilibrium constant for the reaction

N2(g) + O2(g) $$\rightleftharpoons$$ 2NO(g) is 4 $$\times$$ 10$$-$$4 at 2000 K. In presence of a catalyst the equilibrium is attained 10 times faster. Therefore, the equilibrium constant, in presence of the catalyst at 2000 K is
A
4 $$\times$$ 10$$-$$4
B
4 $$\times$$ 10$$-$$3
C
4 $$\times$$ 10$$-$$5
D
2.5 $$\times$$ 10$$-$$4
4
WB JEE 2021
+1
-0.25 Under the same reaction conditions, initial concentration of 1.386 mol dm$$-$$3 of a substance becomes half in 40 s and 20 s through first-order and zero-order kinetics respectively. Ratio $$\left( {{{{k_1}} \over {{k_0}}}} \right)$$ of the rate constants for first-order (k1) and zero-order (k0) of the reactions is
A
0.5 mol$$-$$1 dm3
B
0.5 mol dm$$-$$3
C
1.0 mol dm3
D
2.0 mol$$-$$1 dm3
WB JEE Subjects
Physics
Mechanics
Electricity
Optics
Modern Physics
Chemistry
Physical Chemistry
Inorganic Chemistry
Organic Chemistry
Mathematics
Algebra
Trigonometry
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Calculus
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