The activation energy for a simple chemical reaction A → B is Eα in forward direction. The activation energy for reverse reaction
Can be less than or more than Eα
Is always double of Eα
Is negative of Eα
Is always less than Eα
3A → B + C
It would be a zero order reaction, when.
The rate of reaction is proportional to square of concentration of A.
The rate of reaction remains same at any concentration of A.
The rate remains unchanged at any concentration of B and C.
The rate of reaction doubles if concentration of B is increased to double.
When a biochemical reaction is carried out in laboratory from outside of human body in the absence of enzyme, the rate of reaction obtained is 10-6 times, then activation energy of the reaction in the presence of enzyme is
6/RT
P is required
Different from Eα obtained in laboratory
Cannot say any things
In a first order reaction A → B, if k is rate constant and initial concentration of the reactant A is 0.5 M, then the half-life is
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 reaction A → B follows first order kinetics. The time taken for 0.8 mole of A to produce 0.6 mole of B is 1 h. What is the time taken for the conversion of 0.9 mole of A to 0.675 mole of B?
0.25 h
2 h
1 h
0.5 h
If the rate of a reaction is equal to the rate constant, the order of the reaction is
2
3
0
1
For a first order reaction A → B, the reaction rate at reactant concentration of 0.01 M is found to be 2.0 × 10-5 mol L-1s-1. The half-life period of the reaction is
220 s
30 s
300 s
347 s
For a first-order reaction, the half-life period is independent of
Initial concentration
Cube root of initial concentration
First power of final concentration
Square root of final concentration
The representation of rate of reaction in terms of concentration of the reactants is known as ______________
partial pressure
rate law
average rate
total rate
