A first-order reaction has a half-life of 693 sec. What will... | Chemistry | SolveeIt | Solveeit

Today, August 23

Question

A first-order reaction has a half-life of 693 sec. What will be its rate constant?

A

0.01 sec-1

B

1 sec-1

C

0.001 sec-1

D

0.1 sec-1

Answer

0.01 sec-1

Explanation

Solution

For a first-order reaction, the rate constant k can be calculated using the formula k= $\frac{0.693}{half-life}$ . Substituting the given half-life, k=0.001sec-1