The representation of rate of reaction in terms of concentration of the reactants is known as ______________
partial pressure
rate law
average rate
total rate
The temperature dependence of the rate constant is given by the Arrhenius equation as
ln k = ln A - Ea/RT
ln A = ln k - Ea/RT
ln k = A Ea/RT
ln A = RT ln Ea - ln k
For the reaction CO + Cl2 → COCl2, the rate is given by, r = k [COCl2]3/2. The unit of the reaction rate is
L-1
s-1
mol3/2 L-3/2 s-1
L-1 mol s-1
The rate law for the chemical reaction 2NO2Cl → 2NO2 + Cl2 is Rate = k [NO2Cl]. The rate determining step is
2NO2Cl → 2NO2 + 2Cl
NO2 + Cl2 → NO2Cl + Cl
NO2Cl + Cl → NO2 + Cl2
NO2Cl → NO2 + Cl
In the following reaction, how is the rate of appearance of the underlined product related to the rate of disappearance of the underlined reactant?
A hypothetical reaction 2p + q → s + r has rate constant as 2.0 × 10-3 mol L-1 s-1. The order of the reaction is
Unpredictable
Zero
One
Two
The temperature dependance of rate constant (k) of a chemical reaction is written in terms of Arrhenius equation, k = Ae-E*/RT. Activation energy (E*) of the reaction can be calculated by plotting
log k vs 1/T
k vs T
The half life period of a first order reaction
Increases with increasing temperature
Increases with decreasing temperature
Is not affected by changing temperature
Increases firstly followed by a decrease on increasing temperature
The experimental rate law for the reaction, A + 2B → C is r = k[A][B]2 If the concentration of both A and B are doubled, the rate of the reaction increases by a factor of
2
4
4√2
2√2
In the first order reaction
Rate constant is independent of initial concentration
Half life is independent of rate constant
Half lives of liquid state reactions are more than those of gas phase reactions
Half life is independent of activation energy
