Chemical Kineti...

Direction : This section contains multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.

Q. For zeroth order reaction,

A  → B

[A]₀ = 0.01 M, [A]_t  = 0.008Matter 10 min.

Thus, half-life is

A Certain Zeroth Order reaction has k = 0.025 Ms^-1   for the disappearance of A. What will be the concentration of A after 15s, if the intial concentration is 0.50 M?

For Zeroth Order Reaction, variation of x with time is shown as  

Q. At initial concenration of the reactant as 17.32 min dm^-1   , half - life period is  

For the first order reaction, rate constant k is given by

kt = logC₀   - log C_t

where, C₀  is the intial concenration and C_t is the concentration at time t. Graph between log C_t and time t is

In a first order reaction, the concentration of the reactant decreases from 0.8 M to 0.4 M is 15 min. The time taken for the concentration to change from 0.1 M to 0.025 M is

For the First order reaction, concentration of the reactant after two averagelives is  reduced to

The half-life period of a first order chemical reaction is 6.93 min. The time required for the completion of 99% of the chemical reaction will be (log2 = 0.3010)

For the first order reaction,

A →Product

Q. The concentration of A changes from 0.1 M to 0.025 M in 40 min. The rate of the reaction when the concentration of A is 0.01 M is

For the reaction,

A  →Products,    

Concentration of A at different time intervals are given :

At 20 min, rate will be

For the first order reaction with, C₀ as the initial concentration and C at time  t, (C₀  - C) =