Question

Calculate half life of reaction if rate constant of first order reaction is 0.0178 minute⁻¹.

Options

• 39 minute

• 26 minute

• 52 minute

• 45 minute

Answer 1

39 minute

Explanation:

For first order reaction,

`t_(1/2) = 0.693/k`

`t_(1/2) = 0.693/0.0178`

= 38.93 minutes ≈ 39 min