Explanation
Rate of reaction depends upon nature of reactants,
concentration of the reactants , temperature and catalyst.
When one of the reactant is present in large excess,
the reaction is known as pseudo first order.
For 1st order reaction, half- life period is
Independent of initial concentration.
10% of the reaction will be completed in 20 min.
Next 20% of the reaction will be completed in next
20 min. Hence, 10% + 9% = 19% .
When heat energy is supplied , kinetic energy of reactants
increases and so as the rate of reaction will be enhanced.
Reactions having low are fast reactions and vice-versa
because of decrease in number of collisions.
Increase in temperature increases the number
of molecule having threshold energy. So, rate
of reaction increases.
Z (collision frequency ) and rate constant (k) increases
with increase in temperature.
Minimum energy required to undergo reaction
is known as Activation energy.
Unit of A depends on unit of k .
When temperature increases , kinetic energy of
reacting molecule increases.
So, Rate of reaction increases.
Molecularity do not effect rate of reaction.
Please disable the adBlock and continue. Thank you.