Chemical Kinetics

What is the activation energy $(\mathrm{kJ} / \mathrm{mol})$ for a reaction if its rate constant doubles when the temperature is raised from $300 \mathrm{~K}$ to $400 \mathrm{~K}$ ? $\left(R=8.314 \mathrm{~J}…

Assertion : Half-life period of a reaction of first order is independent of initial concentration. Reason : Half-life period for a first order reaction, $t_{1 / 2}=\frac{2.303}{k} \log 2$.

Find out the time required for $2 / 3^{\text {rd }}$ completion of a first order reaction, if the value of rate constant is $4.3 \times 10^{-4} \mathrm{~s}^{-1}$?

For a first order gas phase reaction, $A_{(g)} \longrightarrow 2 B_{(g)}+C_{(g)}$ $P_0$ be initial pressure of $A$ and $P_t$ the total pressure at time ' $t$ '. Integrated rate equation is

Which option is valid for a zero order reaction?

If energy of activation of the reaction is $53.6 \mathrm{~kJ} \mathrm{~mol}^{-1}$ and the temperature changes from $27^{\circ} \mathrm{C}$ to $37^{\circ} \mathrm{C}$ then the value of $\left(\frac{k_{37^{\circ}…

During the decomposition of $\mathrm{H}_2 \mathrm{O}_2$ to give oxygen, $48 \mathrm{~g} \mathrm{O}_2$ is formed per minute at a certain point of time. The rate of formation of water at this point is

A first order reaction, which is $30 \%$ complete in 30 minutes has a half-life period of

In a decay process ${ }_Z^A X$ changes into ${ }_{Z-1}^A Y$. Which process is this?

For reaction $a A \rightarrow x P$, when $[A]=2.2 \mathrm{mM}$, the rate was found to be $2.4 \mathrm{mM} \mathrm{s}^{-1}$. On reducing concentration of $A$ to half, the rate changes to $0.6 \mathrm{mM}…

For the reaction $A_{(g)} \longrightarrow B_{(g)}+C_{(g)}$, the rate constant is given as $\left(P_i\right.$ is initial pressure and $P_t$ is pressure at time $t$)

$75 \%$ of a zero order reaction complete in $4 \mathrm{~h}$ $87.5 \%$ of the same reaction completes in