4.32 numerical plz
Asked by lovemaan5500 | 18th Sep, 2019, 10:02: PM
50% of reaction gets completed in 2 hr. that is, half life period of reaction is 2 hr.
Next half reaction gets completed in 2hr that is (25% half of reamaining 50%) half life period is 2 hr.
So the half life period of reaction is independent of concentration. Hence it is first order reaction.
Also, we can solve this by using equations for first order reaction,
t1/2 = 2 hr
k = 0.3465 hr−1
By using expression for first order reaction,
t = 4 hr
A = 100
(A-X) = 100- 75
By using expressions for first order reaction, we get same value of rate constant.
Hence it is confirmed that, it is a first order reaction.
Answered by Varsha | 19th Sep, 2019, 01:12: PM
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