QUIZ # 1, Chapter -12

ID # Name: Date:

Attempt all questions.

[2]

Q.1 a) Write down the rate law equation of the following reaction.

2NO₂ (g) 2NO (g) + O₂ (g)

b) The rate constant (k) and order of the reactant (n) must both be

determined by

a) Coefficient of balanced equation only.

b) Concentration of the product only.

c) Experiment only.

d) both coefficients of the balanced equation and experiment.

[5.5]

Q.2. The following data were obtained for the reaction

2ClO₂ (aq) + 2OH ^– (aq) ClO₃ ^– (aq) + ClO₂ ^- (aq) + H₂O (l)

where Rate = -

a) Determine rate law

b) The value of the rate constant (k)

c) What would be the value of initial rate for an experiment

with [ClO₂] ₀ = 0.175 mol/L, and [OH ^-] ₀ = 0.0844 mol/L.

Show all calculations

[2.5]

Q. 3. a) Write down the integrated form of the following equation and unit of

the rate constant (k) ?

(n=1)

b) What is half life time of second order reaction. ?