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.
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.
___________ reaction is termed as fast reaction.
Molecular reaction.
Homogeneous reaction.
Ionic reaction
Heterogeneous reaction.
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.
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 of a chemical reaction
Increases as the reaction proceeds
Decreases as the reaction proceeds.
May increase or decrease during the reaction.
Remains constant as the reaction proceeds.
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 reaction in which reactants are present in different physical states are called
Homogeneous reaction
Heterogeneous reaction
The first quantitative relationship between the rate of reaction and concentration of reactants was given by
Goldstein
Guldberg and waage.
Lavoisier.
Chadwick.
