320085
The rate constant is given by the equation \({\rm{k = pz}}{{\rm{e}}^{{\rm{ - }}{{\rm{E}}_{\rm{a}}}{\rm{/RT}}}}\). Which factor should register a decrease for the reaction to proceed more rapidly?
1 \(\mathrm{T}\)
2 \(\mathrm{Z}\)
3 \(E_{a}\)
4 \(\mathrm{P}\)
Explanation:
Lower is the activation energy, \({{\rm{E}}_{\rm{a}}}\) faster is the reaction.
CHXII04:CHEMICAL KINETICS
320086
Assertion : Arrhenius parameter \((\mathrm{A})=\mathrm{P}\) (steric factor) \(\times \mathrm{z}\) (collision frequency) Reason : On increasing temperature, the value of A increases.
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
320087
The energy profile diagrams of two reactions are shown in the figure. Then
1 Reaction \(\mathrm{A} \rightarrow \mathrm{B}\) is faster than and more exothermic than reaction \(\mathrm{C} \rightarrow \mathrm{D}\)
2 Reaction \(\mathrm{C} \rightarrow \mathrm{D}\) is faster than reaction \(\mathrm{A} \rightarrow \mathrm{B}\) but less exothermic
3 Reaction \(\mathrm{C} \rightarrow \mathrm{D}\) is faster and more exothermic than the reaction \(\mathrm{A} \rightarrow \mathrm{B}\).
4 Reaction \({\text{C}} \to {\text{D}}\,{\text{2}}\frac{{\text{1}}}{{\text{2}}}\) times faster than reaction \(A \rightarrow B\) at the same temperature
Explanation:
Due to lower activation energy or threshold energy level.
CHXII04:CHEMICAL KINETICS
320088
Match the column I with column II and mark the appropriate choice.
Collision theory is for bimolecular reactions.Zero order reaction, rate constant units are mol. lit \(^{-}\)sec \(^{-}\)photo chemical reaction is an example of zero order reaction. Intercept in Arrhenius plot is \(\ln \mathrm{A}\). Order of reaction can be \(+\mathrm{ve},-\mathrm{ve}\), zero or dfractional.
320085
The rate constant is given by the equation \({\rm{k = pz}}{{\rm{e}}^{{\rm{ - }}{{\rm{E}}_{\rm{a}}}{\rm{/RT}}}}\). Which factor should register a decrease for the reaction to proceed more rapidly?
1 \(\mathrm{T}\)
2 \(\mathrm{Z}\)
3 \(E_{a}\)
4 \(\mathrm{P}\)
Explanation:
Lower is the activation energy, \({{\rm{E}}_{\rm{a}}}\) faster is the reaction.
CHXII04:CHEMICAL KINETICS
320086
Assertion : Arrhenius parameter \((\mathrm{A})=\mathrm{P}\) (steric factor) \(\times \mathrm{z}\) (collision frequency) Reason : On increasing temperature, the value of A increases.
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
320087
The energy profile diagrams of two reactions are shown in the figure. Then
1 Reaction \(\mathrm{A} \rightarrow \mathrm{B}\) is faster than and more exothermic than reaction \(\mathrm{C} \rightarrow \mathrm{D}\)
2 Reaction \(\mathrm{C} \rightarrow \mathrm{D}\) is faster than reaction \(\mathrm{A} \rightarrow \mathrm{B}\) but less exothermic
3 Reaction \(\mathrm{C} \rightarrow \mathrm{D}\) is faster and more exothermic than the reaction \(\mathrm{A} \rightarrow \mathrm{B}\).
4 Reaction \({\text{C}} \to {\text{D}}\,{\text{2}}\frac{{\text{1}}}{{\text{2}}}\) times faster than reaction \(A \rightarrow B\) at the same temperature
Explanation:
Due to lower activation energy or threshold energy level.
CHXII04:CHEMICAL KINETICS
320088
Match the column I with column II and mark the appropriate choice.
Collision theory is for bimolecular reactions.Zero order reaction, rate constant units are mol. lit \(^{-}\)sec \(^{-}\)photo chemical reaction is an example of zero order reaction. Intercept in Arrhenius plot is \(\ln \mathrm{A}\). Order of reaction can be \(+\mathrm{ve},-\mathrm{ve}\), zero or dfractional.
320085
The rate constant is given by the equation \({\rm{k = pz}}{{\rm{e}}^{{\rm{ - }}{{\rm{E}}_{\rm{a}}}{\rm{/RT}}}}\). Which factor should register a decrease for the reaction to proceed more rapidly?
1 \(\mathrm{T}\)
2 \(\mathrm{Z}\)
3 \(E_{a}\)
4 \(\mathrm{P}\)
Explanation:
Lower is the activation energy, \({{\rm{E}}_{\rm{a}}}\) faster is the reaction.
CHXII04:CHEMICAL KINETICS
320086
Assertion : Arrhenius parameter \((\mathrm{A})=\mathrm{P}\) (steric factor) \(\times \mathrm{z}\) (collision frequency) Reason : On increasing temperature, the value of A increases.
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
320087
The energy profile diagrams of two reactions are shown in the figure. Then
1 Reaction \(\mathrm{A} \rightarrow \mathrm{B}\) is faster than and more exothermic than reaction \(\mathrm{C} \rightarrow \mathrm{D}\)
2 Reaction \(\mathrm{C} \rightarrow \mathrm{D}\) is faster than reaction \(\mathrm{A} \rightarrow \mathrm{B}\) but less exothermic
3 Reaction \(\mathrm{C} \rightarrow \mathrm{D}\) is faster and more exothermic than the reaction \(\mathrm{A} \rightarrow \mathrm{B}\).
4 Reaction \({\text{C}} \to {\text{D}}\,{\text{2}}\frac{{\text{1}}}{{\text{2}}}\) times faster than reaction \(A \rightarrow B\) at the same temperature
Explanation:
Due to lower activation energy or threshold energy level.
CHXII04:CHEMICAL KINETICS
320088
Match the column I with column II and mark the appropriate choice.
Collision theory is for bimolecular reactions.Zero order reaction, rate constant units are mol. lit \(^{-}\)sec \(^{-}\)photo chemical reaction is an example of zero order reaction. Intercept in Arrhenius plot is \(\ln \mathrm{A}\). Order of reaction can be \(+\mathrm{ve},-\mathrm{ve}\), zero or dfractional.
320085
The rate constant is given by the equation \({\rm{k = pz}}{{\rm{e}}^{{\rm{ - }}{{\rm{E}}_{\rm{a}}}{\rm{/RT}}}}\). Which factor should register a decrease for the reaction to proceed more rapidly?
1 \(\mathrm{T}\)
2 \(\mathrm{Z}\)
3 \(E_{a}\)
4 \(\mathrm{P}\)
Explanation:
Lower is the activation energy, \({{\rm{E}}_{\rm{a}}}\) faster is the reaction.
CHXII04:CHEMICAL KINETICS
320086
Assertion : Arrhenius parameter \((\mathrm{A})=\mathrm{P}\) (steric factor) \(\times \mathrm{z}\) (collision frequency) Reason : On increasing temperature, the value of A increases.
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
320087
The energy profile diagrams of two reactions are shown in the figure. Then
1 Reaction \(\mathrm{A} \rightarrow \mathrm{B}\) is faster than and more exothermic than reaction \(\mathrm{C} \rightarrow \mathrm{D}\)
2 Reaction \(\mathrm{C} \rightarrow \mathrm{D}\) is faster than reaction \(\mathrm{A} \rightarrow \mathrm{B}\) but less exothermic
3 Reaction \(\mathrm{C} \rightarrow \mathrm{D}\) is faster and more exothermic than the reaction \(\mathrm{A} \rightarrow \mathrm{B}\).
4 Reaction \({\text{C}} \to {\text{D}}\,{\text{2}}\frac{{\text{1}}}{{\text{2}}}\) times faster than reaction \(A \rightarrow B\) at the same temperature
Explanation:
Due to lower activation energy or threshold energy level.
CHXII04:CHEMICAL KINETICS
320088
Match the column I with column II and mark the appropriate choice.
Collision theory is for bimolecular reactions.Zero order reaction, rate constant units are mol. lit \(^{-}\)sec \(^{-}\)photo chemical reaction is an example of zero order reaction. Intercept in Arrhenius plot is \(\ln \mathrm{A}\). Order of reaction can be \(+\mathrm{ve},-\mathrm{ve}\), zero or dfractional.
