320244
Assertion : If temperature does not affect the rate of reaction, \({{\rm{E}}_{\rm{a}}}{\rm{ = 0}}\). Reason : Lesser the activation energy, slower will be the reaction.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Conceptual Questions
CHXII04:CHEMICAL KINETICS
320245
Assertion : Rate constant determined from arrhenius equation are fairly accurate for simple as well as complex molecules. Reason : Reactant molecules undergo chemical change irrespective of their orientaion during collision.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Assertion is correct, but reason is incorrect. Rate constant determined from arrhenius equation are fairly accurate for simple and complex molecules because only those molecules which have proper orientation during collision (i.e., effective collision) and sufficient kinetic energy lead the chemical change.
CHXII04:CHEMICAL KINETICS
320246
\({\text{k}}\) ' represents the rate constant of a reaction when \(\log \mathrm{k}\) is plotted against \(1 / \mathrm{T}\) \((\mathrm{T}=\) temperature) the graph obtained is a
1 Curve
2 A straight line with a constant positive slope
3 A straight line with a constant negative slope
4 A straight line with no slope
Explanation:
CHXII04:CHEMICAL KINETICS
320247
Which of the following is incorrect from the theory of Arrhenius equation?
1 The number of effective collisions is proportional to the number of molecules above a certain threshold energy.
2 As the temperature increases, the number of molecules with energies exceeding the threshold energy increases.
3 The rate constant is a function of temperature
4 Activation energy and pre-exponential factors are temperature-dependent.
320244
Assertion : If temperature does not affect the rate of reaction, \({{\rm{E}}_{\rm{a}}}{\rm{ = 0}}\). Reason : Lesser the activation energy, slower will be the reaction.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Conceptual Questions
CHXII04:CHEMICAL KINETICS
320245
Assertion : Rate constant determined from arrhenius equation are fairly accurate for simple as well as complex molecules. Reason : Reactant molecules undergo chemical change irrespective of their orientaion during collision.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Assertion is correct, but reason is incorrect. Rate constant determined from arrhenius equation are fairly accurate for simple and complex molecules because only those molecules which have proper orientation during collision (i.e., effective collision) and sufficient kinetic energy lead the chemical change.
CHXII04:CHEMICAL KINETICS
320246
\({\text{k}}\) ' represents the rate constant of a reaction when \(\log \mathrm{k}\) is plotted against \(1 / \mathrm{T}\) \((\mathrm{T}=\) temperature) the graph obtained is a
1 Curve
2 A straight line with a constant positive slope
3 A straight line with a constant negative slope
4 A straight line with no slope
Explanation:
CHXII04:CHEMICAL KINETICS
320247
Which of the following is incorrect from the theory of Arrhenius equation?
1 The number of effective collisions is proportional to the number of molecules above a certain threshold energy.
2 As the temperature increases, the number of molecules with energies exceeding the threshold energy increases.
3 The rate constant is a function of temperature
4 Activation energy and pre-exponential factors are temperature-dependent.
320244
Assertion : If temperature does not affect the rate of reaction, \({{\rm{E}}_{\rm{a}}}{\rm{ = 0}}\). Reason : Lesser the activation energy, slower will be the reaction.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Conceptual Questions
CHXII04:CHEMICAL KINETICS
320245
Assertion : Rate constant determined from arrhenius equation are fairly accurate for simple as well as complex molecules. Reason : Reactant molecules undergo chemical change irrespective of their orientaion during collision.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Assertion is correct, but reason is incorrect. Rate constant determined from arrhenius equation are fairly accurate for simple and complex molecules because only those molecules which have proper orientation during collision (i.e., effective collision) and sufficient kinetic energy lead the chemical change.
CHXII04:CHEMICAL KINETICS
320246
\({\text{k}}\) ' represents the rate constant of a reaction when \(\log \mathrm{k}\) is plotted against \(1 / \mathrm{T}\) \((\mathrm{T}=\) temperature) the graph obtained is a
1 Curve
2 A straight line with a constant positive slope
3 A straight line with a constant negative slope
4 A straight line with no slope
Explanation:
CHXII04:CHEMICAL KINETICS
320247
Which of the following is incorrect from the theory of Arrhenius equation?
1 The number of effective collisions is proportional to the number of molecules above a certain threshold energy.
2 As the temperature increases, the number of molecules with energies exceeding the threshold energy increases.
3 The rate constant is a function of temperature
4 Activation energy and pre-exponential factors are temperature-dependent.
320244
Assertion : If temperature does not affect the rate of reaction, \({{\rm{E}}_{\rm{a}}}{\rm{ = 0}}\). Reason : Lesser the activation energy, slower will be the reaction.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Conceptual Questions
CHXII04:CHEMICAL KINETICS
320245
Assertion : Rate constant determined from arrhenius equation are fairly accurate for simple as well as complex molecules. Reason : Reactant molecules undergo chemical change irrespective of their orientaion during collision.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Assertion is correct, but reason is incorrect. Rate constant determined from arrhenius equation are fairly accurate for simple and complex molecules because only those molecules which have proper orientation during collision (i.e., effective collision) and sufficient kinetic energy lead the chemical change.
CHXII04:CHEMICAL KINETICS
320246
\({\text{k}}\) ' represents the rate constant of a reaction when \(\log \mathrm{k}\) is plotted against \(1 / \mathrm{T}\) \((\mathrm{T}=\) temperature) the graph obtained is a
1 Curve
2 A straight line with a constant positive slope
3 A straight line with a constant negative slope
4 A straight line with no slope
Explanation:
CHXII04:CHEMICAL KINETICS
320247
Which of the following is incorrect from the theory of Arrhenius equation?
1 The number of effective collisions is proportional to the number of molecules above a certain threshold energy.
2 As the temperature increases, the number of molecules with energies exceeding the threshold energy increases.
3 The rate constant is a function of temperature
4 Activation energy and pre-exponential factors are temperature-dependent.
