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VladimirAG [237]
3 years ago
8

What is the velocity of a first-order reaction when the reactant concentration is 6 x 10-2M and the rate constant is 8 x 103sec-

1?
A) 1.33 x 105M-1•sec-1

B) 1.33 x 105M•sec

C) 7.5 x 10-2M•sec

D) 4.8 x 102M•sec-1

E) not enough data are given to make this calculation
Chemistry
1 answer:
tresset_1 [31]3 years ago
5 0

Answer:

D) 4.8 × 10² M/s

Explanation:

Let's consider the following generic reaction.

A → B

The rate law is:

v = k . [A]ⁿ

where,

v: velocity

k: rate constant

[A]: concentration of the reactant A

n: reaction order for A

<em>What is the velocity of a first-order reaction when the reactant concentration is 6 × 10⁻²M and the rate constant is 8 × 10³s⁻¹?</em>

v = k . [A]¹ = 8 x 10³s⁻¹ . 6 x 10⁻²M = 4.8 × 10² M/s

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