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 \(400 \mathrm{~K}\) of these $$(R=8.314 \mathrm{~Jmol}^{-1} \mathrm{~K}^{-...

Find out time period of Ist order reaction. When reaction complete \(2 / 3 \mathrm{rd}\). If the value of rate constant is \(4.3 \times 10^{-4}\)

Assertion (A) The reaction
$$\begin{aligned} 2 \mathrm{NO}+\mathrm{O}_2 & \longrightarrow 2 \mathrm{NO}_2 \\ \text { and } \quad 2 \mathrm{CO}+\mathrm{O}_2 & \longrightarrow 2 \mathrm{CO}_2 \end{aligned}$$
proceeds at the same rate because ...

The rate constant for the first order
decomposition of a certain reaction is
described by the equation \(\ln k\left(\mathrm{~s}^{-1}\right)=14.34-\frac{1.25 \times 10^4 \mathrm{~K}}{T}\). The energy of activation for this reaction is

Among the following statements, the correct statement about the half-life period for a first order reaction is