CHEMICAL KINETICS MOST IMPOTANT QUESTIONS HSC MAHARASHTRA BOARD
(4 - 6 Marks)
1.
1.
DEFINE
·
Rate law (or differential rate law).
·
Rate constant.
·
Order of a chemical reaction.
·
Average rate chemical reaction.
·
Instantaneous rate chemical reaction.
·
Pseudo first order chemical reaction
2.
Write the difference between
order and molecularity of reaction.
3.
Derive the relation between half-life period and
rate constant for first order reaction.
4.
Write the mathematical relation between half life
of zero order reaction and its rate constant.
5.
Explain the rate law.
NUMERICALS
1. 1.In a first order reaction x→y, 40% of the given sample of
compound remains unreacted in 45 minutes. Calculate rate constant of the
reaction.
2. 2 .In a first order reaction A → product, 80% of the given
sample of compound decomposes in 40 min. What is the half life period of the
reaction?
3. 3.The rate of a first order reaction, A→B is 5.4 x 10 Ms when [A] is
0.3 M. Calculate the rate constant of the reaction.
4. 4.The half life period of a first order reaction
is 6.0 h. Calculate the rate constant.
