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Chemical Kinetics : First Order Reaction

Total questions: 8

Worksheet time: 4mins

Name
Class
Date
1.

A first order of reaction is a reaction whose rate depends on the reactant concentration raised to 2nd power

a)

True

b)

False

2.

The order of reaction is based from non-experimental data

a)

True

b)

False

3.

Which of the following correctly expresses a 1st order reaction?

a)

r = k[A]2r\ =\ k\left[A\right]^2

b)

r = k[A]3r\ =\ k\left[A\right]^3

c)

r = k[A]r\ =\ k\left[A\right]^{ }

4.

 ln[A]t  ln[A]0 = kt\ln\left[A\right]_{t\ }-\ \ln\left[A\right]_{0\ }=\ -kt  



Following the basic rule of logarithm quotient, which of the following correctly expresses the equation above?

a)

 ln[A]t [A]0 = kt\ln\left[A\right]_{t\ }\left[A\right]_{0\ }=\ -kt  

b)

 ln [A]t[A]0 = kt\ln\ \frac{\left[A\right]_t}{\left[A\right]_0}\ =\ -kt  

c)

 ln[A]t = ln[A]0 kt\ln\left[A\right]_{t\ }=\ \ln\left[A\right]_{0\ }-kt  

5.

The rate law expresses the reactant of the reaction

a)

True

b)

False

6.

Which of the following represents the the unit of k in first order reaction?

a)

s1s^{-1}

b)

ss

c)

sM\frac{s}{M}

7.

Which of the following exhibits a reactant in first order reaction?

a)
b)
c)
8.

Which of the following represent the rate of reaction as
 \rightarrow  Product ?

a)

 rate = Δ[A]Δtrate\ =\ \frac{\Delta\left[A\right]}{\Delta t}  

b)

 rate = Δ[A]Δtrate\ =\ -\frac{\Delta\left[A\right]}{\Delta t}  

c)

 rate = Δ tΔ[A]rate\ =\ \frac{\Delta\ t}{\Delta\left[A\right]}  

d)

 rate = Δ tΔ[A]rate\ =\ -\frac{\Delta\ t}{\Delta\left[A\right]}