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A first order reaction takes 25min …

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A first order reaction takes 25min for 25per decomposition calculate t1over2

Posted by Anjali Singh 3 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Gaurav Seth 3 years, 6 months ago

Given that,

Time = 25 min

Percentage = 25 %

A first order reaction takes 25 minutes for 25% decomposition

We need to calculate the value of k

Using formula of k

Put the value into the formula

When 75% of the reaction will be completed.

We need to calculate the value of

Using formula for

Put the value into the formula

Hence, The time is 120.5 min.

ANSWER

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