MEDIUM
JEE Main
IMPORTANT
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For a reaction, consider the plot of lnk versus 1/T given in the figure. If the rate constant of this reaction at 400K is 10-5s-1 , then the rate constant at 500K is:

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Important Questions on Chemical Kinetics

EASY
JEE Main
IMPORTANT
Decomposition of X exhibits a rate constant of 0.05μg/year. How many years are required for the decomposition of 5μg of X into 2.5μg?
EASY
JEE Main
IMPORTANT
NO2 required for a reaction is produced by the decomposition of N2O5 in CCl4 as per the equation,
2N2O5g4NO2g+O2g.
The initial concentration of N2O5 is 3.00 mol L-1 and it is 2.75 mol L-1 after 30 minutes. The rate of formation of NO2 is:
MEDIUM
JEE Main
IMPORTANT

In the following reaction; xAyB

log10-dAdt=log10-dBdt+0.3010

‘A’ and ‘B’ respectively can be:

EASY
JEE Main
IMPORTANT
A+2BC , the rate equation for the reaction is given as

Rate =k[A][B]

If the concentration of A is kept the same but that of B is doubled what will happen to the rate itself?
EASY
JEE Main
IMPORTANT
For the equilibrium, AgBg, H is -40 kJ/mol . If the ratio of the activation energies of the forward Ef and reverse Eb reactions is 23 then:
HARD
JEE Main
IMPORTANT

For an elementary chemical reaction, A2 k-1k12A , the expression for dAdt is:

HARD
JEE Main
IMPORTANT

Consider the given plots for a reaction obeying Arrhenius equation (0°C<T<300°C): ( K and Ea are rate constant and activation energy, respectively )

(I) 

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(II) 

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MEDIUM
JEE Main
IMPORTANT
For the reaction of H2 with I2, the rate constant is 2.5×10-4 dm3mol-1s-1 at 327oC and 1.0 dm3 mol-1s-1 at 527°C . The activation energy for the reaction, in kJ mol-1 is:

R=8.314 JK-1mol-1