320249
The rate constant of a first order reaction at \(27^{\circ} \mathrm{C}\) is \(10^{-3} \mathrm{~min}^{-1}\). The rate constant (in \(\min ^{-1}\) ) at \(17^{\circ} \mathrm{C}\) for this reaction is
1 \(10^{-3}\)
2 \(5 \times 10^{-4}\)
3 \(2 \times 10^{-3}\)
4 \(10^{2}\)
Explanation:
Temperature Coefficient, \(\dfrac{\mathrm{k}_{\mathrm{t}}+10}{\mathrm{k}_{\mathrm{t}}}=2(\) in general \()\) \(2=\dfrac{10^{-3}}{\mathrm{~K}_{\mathrm{t}}} \Rightarrow \mathrm{k}_{\mathrm{t}}=\dfrac{10^{-3}}{2}=5 \times 10^{-4}\)
CHXII04:CHEMICAL KINETICS
320250
Chemical reaction with high \({{\text{E}}_{\text{a}}}\) values are generally
1 Very fast
2 Very slow
3 Moderately fast
4 Spontaneous
Explanation:
Reaction having high \({{\text{E}}_{\text{a}}}\) are slow reactions. If \(\mathrm{E}_{\mathrm{a}}\) is high, then the number of effective collisions will be less and the reaction will takes place slowly.
CHXII04:CHEMICAL KINETICS
320251
Assertion : The reaction \(2 \mathrm{NO}+\mathrm{O}_{2} \rightarrow 2 \mathrm{NO}_{2}\) and \(2 \mathrm{CO}+\mathrm{O}_{2} \rightarrow 2 \mathrm{CO}_{2}\) proceeds at the same rate becuase they are similar. Reason : Both the reactions have same activation energy
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 Both Assertion and Reason are incorrect.
Explanation:
Both the reactions \(2 \mathrm{NO}+\mathrm{O}_{2} \rightarrow 2 \mathrm{NO}_{2}\) and \(2 \mathrm{CO}+\mathrm{O}_{2} \rightarrow 2 \mathrm{CO}_{2}\) proceed at the different rates and have different activation energies.
320249
The rate constant of a first order reaction at \(27^{\circ} \mathrm{C}\) is \(10^{-3} \mathrm{~min}^{-1}\). The rate constant (in \(\min ^{-1}\) ) at \(17^{\circ} \mathrm{C}\) for this reaction is
1 \(10^{-3}\)
2 \(5 \times 10^{-4}\)
3 \(2 \times 10^{-3}\)
4 \(10^{2}\)
Explanation:
Temperature Coefficient, \(\dfrac{\mathrm{k}_{\mathrm{t}}+10}{\mathrm{k}_{\mathrm{t}}}=2(\) in general \()\) \(2=\dfrac{10^{-3}}{\mathrm{~K}_{\mathrm{t}}} \Rightarrow \mathrm{k}_{\mathrm{t}}=\dfrac{10^{-3}}{2}=5 \times 10^{-4}\)
CHXII04:CHEMICAL KINETICS
320250
Chemical reaction with high \({{\text{E}}_{\text{a}}}\) values are generally
1 Very fast
2 Very slow
3 Moderately fast
4 Spontaneous
Explanation:
Reaction having high \({{\text{E}}_{\text{a}}}\) are slow reactions. If \(\mathrm{E}_{\mathrm{a}}\) is high, then the number of effective collisions will be less and the reaction will takes place slowly.
CHXII04:CHEMICAL KINETICS
320251
Assertion : The reaction \(2 \mathrm{NO}+\mathrm{O}_{2} \rightarrow 2 \mathrm{NO}_{2}\) and \(2 \mathrm{CO}+\mathrm{O}_{2} \rightarrow 2 \mathrm{CO}_{2}\) proceeds at the same rate becuase they are similar. Reason : Both the reactions have same activation energy
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 Both Assertion and Reason are incorrect.
Explanation:
Both the reactions \(2 \mathrm{NO}+\mathrm{O}_{2} \rightarrow 2 \mathrm{NO}_{2}\) and \(2 \mathrm{CO}+\mathrm{O}_{2} \rightarrow 2 \mathrm{CO}_{2}\) proceed at the different rates and have different activation energies.
320249
The rate constant of a first order reaction at \(27^{\circ} \mathrm{C}\) is \(10^{-3} \mathrm{~min}^{-1}\). The rate constant (in \(\min ^{-1}\) ) at \(17^{\circ} \mathrm{C}\) for this reaction is
1 \(10^{-3}\)
2 \(5 \times 10^{-4}\)
3 \(2 \times 10^{-3}\)
4 \(10^{2}\)
Explanation:
Temperature Coefficient, \(\dfrac{\mathrm{k}_{\mathrm{t}}+10}{\mathrm{k}_{\mathrm{t}}}=2(\) in general \()\) \(2=\dfrac{10^{-3}}{\mathrm{~K}_{\mathrm{t}}} \Rightarrow \mathrm{k}_{\mathrm{t}}=\dfrac{10^{-3}}{2}=5 \times 10^{-4}\)
CHXII04:CHEMICAL KINETICS
320250
Chemical reaction with high \({{\text{E}}_{\text{a}}}\) values are generally
1 Very fast
2 Very slow
3 Moderately fast
4 Spontaneous
Explanation:
Reaction having high \({{\text{E}}_{\text{a}}}\) are slow reactions. If \(\mathrm{E}_{\mathrm{a}}\) is high, then the number of effective collisions will be less and the reaction will takes place slowly.
CHXII04:CHEMICAL KINETICS
320251
Assertion : The reaction \(2 \mathrm{NO}+\mathrm{O}_{2} \rightarrow 2 \mathrm{NO}_{2}\) and \(2 \mathrm{CO}+\mathrm{O}_{2} \rightarrow 2 \mathrm{CO}_{2}\) proceeds at the same rate becuase they are similar. Reason : Both the reactions have same activation energy
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 Both Assertion and Reason are incorrect.
Explanation:
Both the reactions \(2 \mathrm{NO}+\mathrm{O}_{2} \rightarrow 2 \mathrm{NO}_{2}\) and \(2 \mathrm{CO}+\mathrm{O}_{2} \rightarrow 2 \mathrm{CO}_{2}\) proceed at the different rates and have different activation energies.
320249
The rate constant of a first order reaction at \(27^{\circ} \mathrm{C}\) is \(10^{-3} \mathrm{~min}^{-1}\). The rate constant (in \(\min ^{-1}\) ) at \(17^{\circ} \mathrm{C}\) for this reaction is
1 \(10^{-3}\)
2 \(5 \times 10^{-4}\)
3 \(2 \times 10^{-3}\)
4 \(10^{2}\)
Explanation:
Temperature Coefficient, \(\dfrac{\mathrm{k}_{\mathrm{t}}+10}{\mathrm{k}_{\mathrm{t}}}=2(\) in general \()\) \(2=\dfrac{10^{-3}}{\mathrm{~K}_{\mathrm{t}}} \Rightarrow \mathrm{k}_{\mathrm{t}}=\dfrac{10^{-3}}{2}=5 \times 10^{-4}\)
CHXII04:CHEMICAL KINETICS
320250
Chemical reaction with high \({{\text{E}}_{\text{a}}}\) values are generally
1 Very fast
2 Very slow
3 Moderately fast
4 Spontaneous
Explanation:
Reaction having high \({{\text{E}}_{\text{a}}}\) are slow reactions. If \(\mathrm{E}_{\mathrm{a}}\) is high, then the number of effective collisions will be less and the reaction will takes place slowly.
CHXII04:CHEMICAL KINETICS
320251
Assertion : The reaction \(2 \mathrm{NO}+\mathrm{O}_{2} \rightarrow 2 \mathrm{NO}_{2}\) and \(2 \mathrm{CO}+\mathrm{O}_{2} \rightarrow 2 \mathrm{CO}_{2}\) proceeds at the same rate becuase they are similar. Reason : Both the reactions have same activation energy
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 Both Assertion and Reason are incorrect.
Explanation:
Both the reactions \(2 \mathrm{NO}+\mathrm{O}_{2} \rightarrow 2 \mathrm{NO}_{2}\) and \(2 \mathrm{CO}+\mathrm{O}_{2} \rightarrow 2 \mathrm{CO}_{2}\) proceed at the different rates and have different activation energies.
