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?

The concentration in moles per liter of oxygen in a chemical reaction is given by the function Ct t2 7t where t is in hours Find the rate at which the concentra class=