NTA Abhyas NEET2020ChemistryChemical KineticsPractice
Two different first order reactions have rate constants k 1 and k 2 at T 1 ( k 1 > k 2 ) . If temperature is increased from T 1 to T 2 , then new constants become k 3 and k 4 respectively. Which among the following relations is correct?
Options
- Ak 1 > k 2 = k 3 = k 4
- Bk 1 < k 3 and k 2 < k 4
- Ck 1 = k 3 = k 4
- Dk 1 > k 2 > k 3 > k 4
Correct answer
B. k 1 < k 3 and k 2 < k 4
Step-by-step solution
Rate constant increases with increase in temperature. Hence, k 1 < k 3 and k 2 < k 4 .