Question

A first-order decomposition reaction has a rate constant of 0.00683 yr−1. What is the half-life of the reaction?

Answer 1

101 years

Step-by-step explanation:

Use the half life equation, where t1/2 is the half life, and k is the rate constant:

t1/2 = 0.693/k

t1/2 = 0.693/0.00683 yr -1

t1/2 = 101 years