Chemical Kinetics Quiz 9 – Punjab Meritorious School Preparation Portal

Welcome to your 14th Sep Chemical Kinetics Quiz 9 CBT TEST

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During the kinetic study of the reaction, 2A + B → C + D, following results were obtained:

Run	[A](mol L^–1)	[B](mol L^–1)	Initial rate of formation of D (mol L^–1min^–1)
I	0.1	0.1	6.0 × 10^–3
II	0.3	0.2	7.2 × 10^–2
III	0.3	0.4	2.88 × 10^–1
IV	0.4	0.1	2.40 × 10^–2

Based on the above data which one of the following is correct?

During the kinetic study of the reaction, 2A + B → C + D, following results were obtained:

For an endothermic reaction, energy of activation is E_a and enthalpy of reaction of ∆H (both of these in kJ/mol). Minimum value of E_a will be.

less than ∆H

equal to ∆H

more than ∆H

equal to zero

The unit of rate constant for a zero-order reaction is

In a zero-order reaction for every 10 °C rise of temperature, the rate is doubled. If the temperature is increased from 10 °C to 100 °C, the rate of the reaction will become :

256 times

512 times

64 times

128 times

For the reaction A + B → products, it is observed that:

(1) On doubling the initial concentration of A only, the rate of reaction is also doubled and

(2) On doubling the initial concentrations of both A and B, there is a change by a factor of 8 in the rate of the reaction. The rate of this reaction is given by: