Answer to Question #104017 in General Chemistry for mya

Question

The rate constant for this first‑order reaction is 0.610s ^−1 at 400 degrees Celsius.

A⟶products

How long, in seconds, would it take for the concentration of A to decrease from 0.600M to 0.370M?

Answer 1

$ln(No/N) = kt.$.

No = 0.600M; N = 0.370M, k= 0.610

ln(N_O/N)=0.4834

t=0.4834/0.610

t=0.79 second