A first order reaction has a rate constant 1.15 × 10−3 s−1. The time required to convert 5g of this reactant into 3g is-

1. 424 s 
2. 444 s 
3. 464 s 
4. 484 s 

 
Subtopic:  First Order Reaction Kinetics |
 63%
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Time required to decompose SO2Cl2 to half of its initial amount is 60 minutes. If the decomposition is a first order reaction, the rate constant of the reaction in sec–1 is-
1. 1.9 × 10–4 s–1 2. 1.7 × 10–4 s–1
3. 2.2 × 10–4 s–1 4. 1.6 × 10–4 s–1
Subtopic:  First Order Reaction Kinetics |
 68%
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