List of top Chemistry Questions on kinetics equations asked in JEE Advanced

For a reversible reaction \( R \rightleftharpoons P \), at constant temperature, both the forward and the backward reactions are first order elementary reactions with rate constants \( k_f \) and \( k_b \), respectively. At time zero, the concentration of \( R \) is \( [R]_0 \) and the concentration of \( P \) is zero. At any given time, \( [R] \) and \( [P] \) are the concentrations of \( R \) and \( P \), respectively. If \( k_b = 4k_f \), the correct graphical representation of the reaction is:

For a first-order reaction R \(\rightarrow\) P at a given temperature, \(k\) is the rate constant. For this reaction, at the given temperature, the concentrations of R and P at a time \(t\) are [R] and [P], respectively. The correct graphical representation(s) for this reaction is(are)

If the distribution of molecular speeds of a gas is as per the figure shown below, then the ratio of the most probable, the average, and the root mean square speeds, respectively, is

In a bimolecular reaction, the steric factor $P$ was experimentally determined to be $4.5.$ The correct option(s) among the following is(are)