Study the reaction and read the statement. Xe+3F2→XeF6
The rate constant for this reaction is 0.025, and the reaction is second order in Xe and first order in F2.

What is the rate of the reaction if [Xe] is 0.25 M, and [F2] is 0.4 M?

4.0 × 10–^4
2.5 × 10–^3
1.5 × 10–^3
6.3 × 10–^4

6.3 × 10–^4

Explanation:

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In this case, since the rate laws are written in terms of the rate constant and the concentration of the species contributing to the rate of reaction, as this one is second order in Xe and first order in F2, the rate law would be:

Thus, by plugging in the rate constant and concentrations, we obtain:

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in scientific notation, the value of the  speed of light in a vacuum

  will be written as 2.995 * 10^8. when this value is represented in the form of

  a * 10^b, then, a = 2.995 and b = 8.

the value of the speed of light in a vacuum given above can also be rounded up to approximately 300000000. in this case, the scientific notation will be written as 3 *10^8.