Question

Calculate the half life of first order reaction when rate constant is 2/min

Answer 1

Explanation:

i) Half life, t½ = 0.693 / k

= 0.693 / 200 s-1

= 3.47 ×10 -3 s (approximately)

(ii) Half life, t½ = 0.693 / k

= 0.693 / 2 min-1

= 0.35 min (approximately)

(iii) Half life,t½ = 0.693 / k

= 0.693 / 4 years-1

= 0.173 years (approximately)

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