Question

The concentration (in moles per liter) of oxygen in a chemical reaction is given by the function C(t) = t2 - 7t, where t is in hours. Find the rate at which the concentration of oxygen is changing after 5 hours?

Answer 1

3

Explanation:

This is a differentiation question

`(d)/(dx) [t^2-7t]=2t-7`

C'(t) = 2t - 7

C'(5) = 2(5) - 7

C'(5) = 3