A chemical’s concentration (in mol/L) is differentiable with respect to time (in seconds)

MATHEMATICS · Subjective · A Level · Mathematics · Differentiation · Differentiation

Problem

A chemical’s concentration

C(t)

(in mol/L) is differentiable with respect to time

t

(in seconds). The derivative is

C'(5)=-0.02

. Describe the practical meaning of this value in one concise sentence, including its units.