The rate of a reaction can be obtained by dividing the rate of disappearance of any of the __________ or the rate of appearance of any of the _____________ by its stoichiometric coefficient
Products,Reactants.
Reactants,Products.
Molecules,Reactants
Molecules,Products.
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.
When the reactants and products are in the gaseous state,their concentrations are expressed in terms of their partial pressures in ______________.
Temperature
Pressure
Water
Atmosphere.
The rate constant of a reaction depends on
Temperature.
Mass.
Weight.
Time.
In most of the homogeneous reactions,the rate becomes ______________ to trebled for each 10 degree rise in temperature.
Half
Triple
Double
Same.
The average rate of reaction _______________with time.
Increase
Decrease.
May increase or decrease
Constant.
___________ reaction is termed as fast reaction.
Molecular reaction.
Homogeneous reaction.
Ionic reaction
Heterogeneous reaction.
For most of the homogeneous reaction the value of temperature coefficient lies between
1 and 2
2 and 3.
3 and 4.
4 and 5.
The branch of chemistry which deals with the study of reaction rates and their mechanism is called
Chemical reaction
Chemical kinetics.
Chemisorption.
Chemical reactants.
