15. A. B. C. D. E. The rate law for the reaction 3A - 2B is...

Question

Question

15. A. B. C. D. E. The rate law for the reaction 3A - 2B is rate = k[A] with a rate constant of 0.0447 hr What is the half-li

Answer 1

Answer #1

From rate law, power of A is 1

So, this is 1st order reaction.

Given:

k = 4.47*10^-2 hr-1

use relation between rate constant and half life of 1st order reaction

t1/2 = (ln 2) / k

= 0.693/(k)

= 0.693/(4.47*10^-2)

= 15.5 hr

Answer: C

Answer 2

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