Consider the given plot of enthalpy of the following reaction between A and B . A + B → C + D . Identify the incorrect statement.

Activation enthalpy to form C is 5 k J m o l - 1 less than that to form D .

Formation of A and B from C has highest enthalpy of activation.

D is kinetically stable product.

C is the thermodynamically stable product.

Consider the given plot of enthalpy of the following reaction between A and B . A + B → C + D . Identify the incorrect statement.

Activation enthalpy to form C is 5 k J m o l - 1 less than that to form D .

MEDIUM

JEE Main

IMPORTANT

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Consider the given plot of enthalpy of the following reaction between $A$ and $B .$
$A + B \to C + D .$ Identify the incorrect statement.

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Important Questions on Chemical Kinetics

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 10 - Chemical Kinetics>JEE Main - 9th April 2019 Shift 1>Q 12

The given plots represent the variation of the concentration of a reactant $R$ with time for two different reactions $(i) and (ii)$ . The respective orders of the reaction are
(i) Question Image

(ii) Question Image

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 10 - Chemical Kinetics>JEE Main - 9th April 2017>Q 13

The rate of a reaction quadruples when the temperature changes from

300

310 K

. The activation energy of this reaction is:

(Assume Activation energy and pre-exponential factor are independent of temperature;

\ln (2) = 0.693; R = 8.314 J {mol}^{- 1} K^{- 1}

)

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 10 - Chemical Kinetics>JEE Main - 9th April 2016>Q 14

The reaction of ozone with oxygen atoms in the presence of chlorine atoms can occur by a two step process shown below:

O_{3} (g) + {Cl}^{•} \to O_{2} (g) + {ClO}^{•} (g)

...(i)

k_{i} = 5.2 \times 10^{9} L m o l^{- 1} s^{- 1}

{ClO}^{•} (g) + O^{•} (g) \to O_{2} (g) + {Cl}^{•} (g)

...(ii)

k_{i i} = 2.6 \times 10^{10} L m o l^{- 1} s^{- 1}

The closest rate constant for the overall reaction

O_{3} (g) + O^{•} (g) \to 2 O_{2} (g)

is:

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 10 - Chemical Kinetics>JEE Main - 9th April 2014>Q 15

The half-life period of a first-order reaction is

15 minutes

. The amount of substance left after one hour will be

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 10 - Chemical Kinetics>JEE Main - 8th January 2020 Shift 2>Q 16

Consider the following plots of rate constant versus

\frac{1}{T}

for four different reactions. Which of the following orders is correct for the activation energies of these reactions?
Question Image

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 10 - Chemical Kinetics>JEE Main - 8th January 2020 Shift 1>Q 17

The rate of a certain biochemical reaction at physiological temperature

(T)

occurs

10^{6}

times faster with enzyme than without. The change in the activation energy upon adding enzyme is:

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 10 - Chemical Kinetics>JEE Main - 8th April 2019 Shift 2>Q 18

For a reaction scheme

A \overset{k_{1}}{\to} B \overset{k_{2}}{\to} C,

if the net rate of formation of B is set to be zero then the concentration of B is given by:

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 10 - Chemical Kinetics>JEE Main - 8th April 2019 Shift 1>Q 19

For the reaction

2 A + B \to C

, the values of initial rate at different reactant concentrations are given in the table below. The rate law for the reactions is:

$[A] (m o l L^{- 1})$	$[B] (m o l L^{- 1})$	$I n i t i a l R a t e$ $(m o l L^{- 1} s^{- 1})$
0.05	0.05	0.045
0.10	0.05	0.090
0.20	0.10	0.72

Consider the given plot of enthalpy of the following reaction between A and B. A+B→C+D. Identify the incorrect statement.

Important Questions on Chemical Kinetics

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Consider the given plot of enthalpy of the following reaction between $A$ and $B .$
$A + B \to C + D .$ Identify the incorrect statement.