Reaction Orders

Question 0

2nd order reaction

Answer 0

2A –> products
Rate = kf[A]^2
Each consecutive half life is 2x as long as last half life
Plot (t, 1/[A] ) slope = kf

A+B –> products
Rate = kf[A][B]
Different graph and no predicable half life

Question 1

First order

Answer 1

A –> Products rate = kf[A]
A decreases exponentially. Constant half life

Plot (t, ln[A] ) slope = -kf

Question 2

3rd order reaction

Answer 2

3A –> products
Rate = kf[A]^3

Plot (t, 1/2[A]^2) slope = kf