Which of these molecules most readily undergoes an addition reaction? [Section 24.3]

14.4 THE CHANGE OF CONCENTRATION WITH TIME First-Order Reactions - first-order reaction – one whose rate depends on the concentration of a single reactant raised to the first power - if the rxn of the type A products is first order, the rate law is Rate = - ∆ A = k [A] ∆t - this form, which expresses how rate depends on concentration, is called differential rate law - this relationship can be transformed into an eqn known as integrated rate law for a first-order rxn that relates the initial concentration of A, [A] 0 to its concentration at any other time t, [A] t ln[A] t ln[A] =0-k t or [A] ln t = -k t [A] 0 or ln[A] t -k t + ln[A] 0 y = mx + b ^ for first-order rxns, which will result in a straight line Second-Order Reactions - second-order reaction – rate depends on either a reactant concentration raised to the second power or on the concentration of two reactants each raised to the first power - consider A products or A+ B products ∆A 2 Rate = - ∆t = k [A]