Question

. A first order reaction has a half-life period of 34.65 seconds. Its rate constant is

(a) 2 × 10-2 sec-1 (b) 4 × 10-4 sec-1 (c) 20 sec-1 (d) 2 × 10-4 sec-1​

Answer 1

Answer:

a) 2×10^-2 sec-1

Explanation:

K1=0.693÷K1/2

K1=0.693÷34.65

K1=2×10^-2 sec-1