320297
Statement A : Catalyst changes the individual energies of the reactants and products. Statement B : Catalyst allows more number of molecules are able to cross the barrier per unit time.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
Explanation:
Catalyst does not changes the individual energies of the reactants and the products. Rather it just alter the pathway of the reaction by lowering the activation energy.
CHXII04:CHEMICAL KINETICS
320298
For the reaction, and . When a catalyst is added, decreases by . What is the for the backward reaction in the presence of catalyst?
1
2
3
4
Explanation:
KCET - 2024
CHXII04:CHEMICAL KINETICS
320299
The energy of activation of positive catalyzed reaction as compared to that of an uncatalyzed reaction is
1 More
2 Less
3 Same
4 May be more or less
Explanation:
A positive catalyst increases the rate of the reaction by decreasing the activation energy by providing alternate path.
CHXII04:CHEMICAL KINETICS
320300
Assertion : The addition of catalyst lowers the activation barrier, yet there is no change in the enthalpy. Reason : Enthalpy change is equal to the differenee in the activation energy for the forward and the backward 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:
Catalysts lower the activation energy barrier, increasing reaction rates, but they do not alter the overall energy change associated with the reaction. Thus, the thermodynamic characteristics, whether exothermic or endothermic, remain unchanged. So option (1) is correct
CHXII04:CHEMICAL KINETICS
320301
The variation of the rate of an enzyme catalyzed reaction with substrate concentration is correctly represented by graph
320297
Statement A : Catalyst changes the individual energies of the reactants and products. Statement B : Catalyst allows more number of molecules are able to cross the barrier per unit time.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
Explanation:
Catalyst does not changes the individual energies of the reactants and the products. Rather it just alter the pathway of the reaction by lowering the activation energy.
CHXII04:CHEMICAL KINETICS
320298
For the reaction, and . When a catalyst is added, decreases by . What is the for the backward reaction in the presence of catalyst?
1
2
3
4
Explanation:
KCET - 2024
CHXII04:CHEMICAL KINETICS
320299
The energy of activation of positive catalyzed reaction as compared to that of an uncatalyzed reaction is
1 More
2 Less
3 Same
4 May be more or less
Explanation:
A positive catalyst increases the rate of the reaction by decreasing the activation energy by providing alternate path.
CHXII04:CHEMICAL KINETICS
320300
Assertion : The addition of catalyst lowers the activation barrier, yet there is no change in the enthalpy. Reason : Enthalpy change is equal to the differenee in the activation energy for the forward and the backward 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:
Catalysts lower the activation energy barrier, increasing reaction rates, but they do not alter the overall energy change associated with the reaction. Thus, the thermodynamic characteristics, whether exothermic or endothermic, remain unchanged. So option (1) is correct
CHXII04:CHEMICAL KINETICS
320301
The variation of the rate of an enzyme catalyzed reaction with substrate concentration is correctly represented by graph
320297
Statement A : Catalyst changes the individual energies of the reactants and products. Statement B : Catalyst allows more number of molecules are able to cross the barrier per unit time.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
Explanation:
Catalyst does not changes the individual energies of the reactants and the products. Rather it just alter the pathway of the reaction by lowering the activation energy.
CHXII04:CHEMICAL KINETICS
320298
For the reaction, and . When a catalyst is added, decreases by . What is the for the backward reaction in the presence of catalyst?
1
2
3
4
Explanation:
KCET - 2024
CHXII04:CHEMICAL KINETICS
320299
The energy of activation of positive catalyzed reaction as compared to that of an uncatalyzed reaction is
1 More
2 Less
3 Same
4 May be more or less
Explanation:
A positive catalyst increases the rate of the reaction by decreasing the activation energy by providing alternate path.
CHXII04:CHEMICAL KINETICS
320300
Assertion : The addition of catalyst lowers the activation barrier, yet there is no change in the enthalpy. Reason : Enthalpy change is equal to the differenee in the activation energy for the forward and the backward 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:
Catalysts lower the activation energy barrier, increasing reaction rates, but they do not alter the overall energy change associated with the reaction. Thus, the thermodynamic characteristics, whether exothermic or endothermic, remain unchanged. So option (1) is correct
CHXII04:CHEMICAL KINETICS
320301
The variation of the rate of an enzyme catalyzed reaction with substrate concentration is correctly represented by graph
320297
Statement A : Catalyst changes the individual energies of the reactants and products. Statement B : Catalyst allows more number of molecules are able to cross the barrier per unit time.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
Explanation:
Catalyst does not changes the individual energies of the reactants and the products. Rather it just alter the pathway of the reaction by lowering the activation energy.
CHXII04:CHEMICAL KINETICS
320298
For the reaction, and . When a catalyst is added, decreases by . What is the for the backward reaction in the presence of catalyst?
1
2
3
4
Explanation:
KCET - 2024
CHXII04:CHEMICAL KINETICS
320299
The energy of activation of positive catalyzed reaction as compared to that of an uncatalyzed reaction is
1 More
2 Less
3 Same
4 May be more or less
Explanation:
A positive catalyst increases the rate of the reaction by decreasing the activation energy by providing alternate path.
CHXII04:CHEMICAL KINETICS
320300
Assertion : The addition of catalyst lowers the activation barrier, yet there is no change in the enthalpy. Reason : Enthalpy change is equal to the differenee in the activation energy for the forward and the backward 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:
Catalysts lower the activation energy barrier, increasing reaction rates, but they do not alter the overall energy change associated with the reaction. Thus, the thermodynamic characteristics, whether exothermic or endothermic, remain unchanged. So option (1) is correct
CHXII04:CHEMICAL KINETICS
320301
The variation of the rate of an enzyme catalyzed reaction with substrate concentration is correctly represented by graph
320297
Statement A : Catalyst changes the individual energies of the reactants and products. Statement B : Catalyst allows more number of molecules are able to cross the barrier per unit time.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
Explanation:
Catalyst does not changes the individual energies of the reactants and the products. Rather it just alter the pathway of the reaction by lowering the activation energy.
CHXII04:CHEMICAL KINETICS
320298
For the reaction, and . When a catalyst is added, decreases by . What is the for the backward reaction in the presence of catalyst?
1
2
3
4
Explanation:
KCET - 2024
CHXII04:CHEMICAL KINETICS
320299
The energy of activation of positive catalyzed reaction as compared to that of an uncatalyzed reaction is
1 More
2 Less
3 Same
4 May be more or less
Explanation:
A positive catalyst increases the rate of the reaction by decreasing the activation energy by providing alternate path.
CHXII04:CHEMICAL KINETICS
320300
Assertion : The addition of catalyst lowers the activation barrier, yet there is no change in the enthalpy. Reason : Enthalpy change is equal to the differenee in the activation energy for the forward and the backward 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:
Catalysts lower the activation energy barrier, increasing reaction rates, but they do not alter the overall energy change associated with the reaction. Thus, the thermodynamic characteristics, whether exothermic or endothermic, remain unchanged. So option (1) is correct
CHXII04:CHEMICAL KINETICS
320301
The variation of the rate of an enzyme catalyzed reaction with substrate concentration is correctly represented by graph