# Problem: What are the units of k for each of the following? Part Afirst-order reaction a) M-1 s-1 b) M-2 s-1 c) M s-1 d) s-1 Part Bsecond-order reaction a) M-1 s-1 b) M-2 s-1 c) M s-1 d) s-1 Part Czero-order reaction a) M-1 s-1 b) M-2 s-1c) M s-1 d) s-1

###### FREE Expert Solution

Part A. To determine the unit of k, we will use the following equation:

$\overline{){\mathbf{k}}{\mathbf{=}}{{\mathbf{M}}}^{\mathbf{-}\mathbf{n}\mathbf{+}\mathbf{1}}{\mathbf{·}}{{\mathbf{t}}}^{\mathbf{-}\mathbf{1}}}$

n = overall order of the reaction
n = 1

t = seconds, s

$\mathbf{k}\mathbf{=}{\left(\mathbf{M}\right)}^{\mathbf{-}\mathbf{1}\mathbf{+}\mathbf{1}}\mathbf{·}{\left(\mathbf{s}\right)}^{\mathbf{-}\mathbf{1}}$

89% (314 ratings) ###### Problem Details

What are the units of k for each of the following?

Part A

first-order reaction

a) M-1 s-1

b) M-2 s-1

c) M s-1

d) s-1

Part B

second-order reaction

a) M-1 s-1

b) M-2 s-1

c) M s-1

d) s-1

Part C

zero-order reaction

a) M-1 s-1

b) M-2 s-1

c) M s-1

d) s-1