Chemical Kinetics

For a first order reaction, intercept of the graph between \(\mathrm{\log\frac{[A]_o}{[A]_t}}\)(Y-axis) and conc. (X-axis) is equal to

Half life for a first order reaction is 6.93 hour. What is the time required for 80% completion of the reaction?

Instantaneous rate of a reaction is \(- {1 \over 2}{{d[x]} \over {dt}} = - {{d[y]} \over {dt}} = {1 \over 2}{{d[z]} \over {dt}}\), identify the reaction.

For the reaction, \(3 \mathrm{I}_{(\mathrm{aq})}^{-}+\mathrm{S}_2 \mathrm{O}_{8(\mathrm{aq})}^{2-} \longrightarrow \mathrm{I}_{3(\mathrm{aq})}^{-}+2 \mathrm{SO}_{4(\mathrm{aq})}^{2-}\), rate of formation of \(\mathrm{SO}_4^{2-}\) is $$0.022...

Which type of reaction order is followed by radioactive processes?

In a first order reaction concentration of reactant decreases from 20 m mol to 10 m mol in 1.151 min. What is rate constant?

For the reaction \(2 \mathrm{NO}+\mathrm{Cl}_2 \rightarrow 2 \mathrm{NOCl}\)
What is the relation between \(\frac{\mathrm{d}[\mathrm{NO}]}{\mathrm{dt}}\) and \(\frac{\mathrm{d}[\mathrm{NOCl}]}{\mathrm{dt}}\) ?

A first order reaction is $25 \%$ completed in 40 minutes. What is the rate constant $k$ for the reaction?

For first order reaction the concentration of reactant decreases from 0.2 to 0.1 M in 100 minutes. What is the rate constant of the reaction?

A first order reaction has rate constant \(1 \times 10^{-2} \mathrm{~s}^{-1}\). What time will, it take for \(20 \mathrm{~g}\) or reactant to reduce to \(5 \mathrm{~g}\) ?

If concentration of reactant '\(A\)' is increased by 10 times the rate of reaction becomes 100 times. What is the order of reaction, if rate law is, rate \(=k[A]^x\) ?

What is the value of rate constant of first order reaction, if it takes 15 minutes for consumption of \(20 \%\) of reactants?

A first order reaction has a rate constant 0.00813 min\(^{-1}\). How long will it take for 60% completion?

For the elementary reaction, $3 \mathrm{H}_2(g)+\mathrm{N}_2(g) \longrightarrow 2 \mathrm{NH}_3(g)$ identify the correct relation among the following relations:

The integrated rate equation for first order reaction, $A \rightarrow$ product, is

Which among the following reaction is an example of a zero order reaction?

For the elementary reaction $2 \mathrm{SO}_2(\mathrm{~g})+\mathrm{O}_2(\mathrm{~g}) \longrightarrow 2 \mathrm{SO}_3(g)$, identify the correct among the following relations

In the reaction, $\mathrm{H}_2 \mathrm{O}_2(a q) \xrightarrow{\mathrm{I_{(aq)}^-}} \mathrm{H}_2 \mathrm{O}(I)+\frac{1}{2} \mathrm{O}_2(g)$ iodide ion acts as

For a chemical reaction rate law is, rate $=k[A]^2[B]$. If $[A]$ is doubled at constant $[B]$, the rate of reaction

The activation energy of a reaction is zero. Its rate constant at 280 K is $1.6 \times 10^{-6} \mathrm{~s}^{-1}$, the rate constant at 300 K is