In most of the homogeneous reactions,the rate becomes ______________ to trebled for each 10 degree rise in temperature.
Half
Triple
Double
Same.
The rate constant of a reaction depends on
Temperature.
Mass.
Weight.
Time.
The rate of reaction=
Time taken for the change/change in concentration of a reactant or a product.
Change in concentration/Time taken for the change.
Time taken for the change/ Change in concentration
Change in concentration of a reactant or a product/ Time taken for the change.
________________ is used to explain the dependence of reaction rate on concentration.
Law of conversation of mass.
Law of constant composition.
Law of mass action
Law of multiple proportions.
A ____________ is a substance which alters rate of the chemical reaction and remains unchanged in amount and chemical composition at the end of the reaction.
Reactants.
Catalyst.
Chemical
Gas.
The rate of a chemical reaction is ________________ to the product of active masses of reactants.
Proportional
Inversely proportional.
Equal
Directly proportional.
The rate of a reaction may be ___________________ by increasing the concentration of one or more reactants.
Decreased
Increased.
May be increased or decreased
Constant.
The average rate of reaction _______________with time.
Increase
Decrease.
May increase or decrease
The rate of a reaction between two substances depends upon the ________________ between their molecules.
Collision theory of reaction rate
Specific reaction rate
Rate of collision.
Rate constant.
The average rate of the reaction is given by
Change in concentration/Time taken for the change
