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It is known that the reaction A - B is
second order with a rate constant of
k= 0.1 s-1 a 200°C. If the initial
concentration of A is 0.5 M, what is the
concentration of A after 30 seconds?

Respuesta :

sashapasta75

Answer:

0.0203M

Explanation:

We'll use the integrated rate law for second order reactions:

1/[A]=1/[A]initial+kt

[A]initial=0.5M

k=0.1/s

t=200°C but we need in Kelvins

t=200 +273.15K=473.15K

1/[A]=1/[0.5]+[0.1 x 473.15]

1/[A]=49.315M

[A]~0.0203M

Hope it helps:)

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