First-Order Reactions (14.2.1)

Question 1

• The rate law for a first-order reaction has the general form rate = k[A]. A more useful equation for first-order reactions is ln[A]t = –kt + ln[A]0.

Answer 1

• The rate law for a first-order reaction has the general form rate = k[A]. A more useful equation for first-order reactions is ln[A]t = –kt + ln[A]0.

Question 2

• The rate of a first-order reaction can also be expressed in terms of half-life (t1/2). t1/2 = 0.693/k.

Answer 2

• The rate of a first-order reaction can also be expressed in terms of half-life (t1/2). t1/2 = 0.693/k.