Question

A first order reaction is found to have a rate constant, k = 5.5 × 10-14 s-1. find the half-life of the reaction​

Answer 1

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Answer 2

Answer:

• 1.26 × 10¹⁴ s

Explanation:

Given

• k = 5.5 × 10⁻¹⁴ s⁻¹

To find

• t₁/₂

Solution

Half life for a first order reaction:

• t₁/₂ = 0.693 / k
• t₁/₂ = 0.0693 / 5.5 × 10⁻¹⁴ s⁻¹
• t₁/₂ = 1.26 × 10¹⁴ s