Short Answer Type

Advertisement

Define activation energy of a reaction.


Activation energy is the extra amount of energy that is supplied from outside so that the colliding particles must produce effective collision i.e., have total energy equal to the threshold energy.

 

127 Views

Advertisement
How is half period related to initial concentration for a second order reaction?
151 Views

The reaction 2H2(g) + O2(g) --> 2H2O(g) is feasible. How is that hydrogen and oxygen mixture allowed to stand at room temperature shows no formation of water at all?
138 Views

Why is instantaneous rate preferred over average rate of reaction?
399 Views

State any one condition under which a bimolecular reaction may be kinetically of first order.
370 Views

Advertisement
A order of reaction is found to be zero. Will its molecularity be zero?
242 Views

The rate constant of a reaction is 3 x 10h–1. What is the order of reaction?
138 Views

A spontaneous reaction is not necessarily a fast reaction. Why?
300 Views

For reaction NO2 + CO → CO2 + NO, the rate law is Rate = k[NO2]2. How many molecules of CO are involved in slowest process?
145 Views

Advertisement
<
In some cases it is found that a large number of colliding molecules have energy more than threshold value, yet the reaction is slow. Why?
609 Views

Advertisement