Chemical Kineti...

If in the fermentation of sugar in an enzymatic solution that is 0.12 M, the concentration of sugar is reduced to 0.06 M in 10 h and to 0.03 M in 20 h. Thus, order of the reaction is  

Direction : Choices for the correct combination of elements from Column I and Column II are given as options (a), (b), (c) and (d), out of which one is correct.

Direction : This section contains 3 paragraphs, each describing theory, experiments, data, etc. Six questions related to the paragraphs have been given. Each question has only one correct answer among the four given options (a), (b), (c) and (d).

Passage I  

Peroxy acetyl nitrite   is an air pollutant, as it decomposes into radicals :

A sample of polluted air is analysed for its PAN content which is reported as molecules per litre of air at 298 K.

Q.

Determine the order of the PAN decomposition

Passage I  

Peroxy acetyl nitrite   is an air pollutant, as it decomposes into radicals :

A sample of polluted air is analysed for its PAN content which is reported as molecules per litre of air at 298 K.

Q.

Rate constant of the reaction is

Passage II

H The reaction between nitric oxide (NO) and hydrogen (H₂ )has been investigated by measuring the initial rate of decrease of pressure in known mixture of gases. The following results were obtained at 1000 K.

Q.

 Overall order of the reaction is

Passage II

H The reaction between nitric oxide (NO) and hydrogen (H₂ )has been investigated by measuring the initial rate of decrease of pressure in known mixture of gases. The following results were obtained at 1000 K.

Q.

Rate constant of the overall reaction is

Passage III

A reaction between substances A and B is represented as:

A+B  →C

Observations on the rate of this reaction are obtained as :

Q. 
Order of the reaction w.r.t. A and B respectively are

Passage III

A reaction between substances A and B is represented as:

A+B  →C

Observations on the rate of this reaction are obtained as :

Q.

Rate constant of the overall reaction is

Direction : When worked out will result in one integer from 0 to 9 (both inclusive).

Graph between logT₅₀ (T₅₀  is half-life period) and   (a  = initial concentration) for n th order reaction is of the type.

What is the value of n?

The acid catalysed hydrolysis of an organic compound A at 30 °C has a time for half change of 100 min  when carried out in a buffer solution at pH 5 and 10 min  when carried out at pH 4. Half-life in both cases are independent of initial concentration of A If rate law is  , then what is the value of (a + b)?

For a reaction, A →B, half-life time for a reaction at [A] = 0.1M is 200 s and at [A] = 0.4M it is 50 s. Thus, order of the reaction i s ......

For the reaction,

A + B  → Product  

Following four experiments were carried out:

Derive the value of y.