List of top Chemistry Questions on Chemical Kinetics asked in Maharashtra Class XII

The unit of rate constant is per second, the order of reaction is --
A chemical reaction occurs in two steps :
(i) \( NO_2Cl(g) \xrightarrow{\text{slow} NO_2(g) + Cl(g) }\)
(ii) \( NO_2Cl(g) + Cl(g) \xrightarrow{\text{fast}} NO_2(g) + Cl_2(g) \)
(a) Write down the rate law.
(b) Identify the reaction intermediate.
Define : Molecularity of reaction
The rate of A + B \(\rightarrow\) P is \(3.6 \times 10^{-2}\) mol/\(dm^3\)/s. When [A] = 0.2 M and [B] = 0.1 M. Calculate the rate constant if reaction is first order in B and second order in A.
Write unit of rate constant for second order reaction.
Derive the relation between half life and rate constant for a first order reaction.
Define zero order reaction. A reaction takes place in two steps : (i) NO(g) + Cl\(_2\)(g) \( \rightarrow \) NOCl\(_2\)(g) (ii) NOCl\(_2\)(g) + NO(g) \( \rightarrow \) 2NOCl(g). Write the overall reaction and identify the reaction intermediate.
The rate law equation for A \(\rightarrow\) Product, is rate = k[A]\(^x\). What is the effect of increase in concentration of 'A' on rate of reaction, if x<0?

If the unit of the rate constant is \( \text{mol} \, (\text{dm}^{-3} \text{s}^{-1}) \), the order of the reaction would be ____________.

For the reaction \( A + B \rightarrow P \):
If \( [B] \) is doubled at constant \( [A] \), the rate of reaction doubles.
If \( [A] \) is tripled and \( [B] \) is doubled, the rate of reaction increases by a factor of 6.
Calculate the rate law equation.
Which of the following correctly represents the integrated rate law equation for a first order reaction in the gas phase?
Which of the following correctly represents integrated rate law equation for a first order reaction in gas phase:
What is Pseudo first order reaction? Derive integrated rate law equation for zero order reaction.
Show that, time required for 99.9 percent completion of a first order reaction is three times the time required for 90 percent completion. Give electronic configuration of Gd (Z = 64). Write the name of nano structured material used in car tyres to increase the life of tyres.

Identify the molecularity of following elementary reaction: NO(g) + O\(_3\)(g) \(\to\) NO\(_3\)(g) + O(g) 
 

Define half life of first order reaction. Obtain the expression for half life and rate constant of the first order reaction.