List of top Chemistry Questions on Rate constant asked in CUET (UG)

The constant 'k' in a rate law expression of a reaction is

A first-order reaction has a rate constant of \(2.0\times10^{-3}\ s^{-1}\) at \(300\ K\) and \(8.0\times10^{-3}\ s^{-1}\) at \(330\ K\). Assuming the Arrhenius equation to be valid, the activation energy of the reaction is closest to:

The SI unit of rate constant for a first order reaction is:

For a first-order reaction, the unit of rate constant is:

The slope of Arrhenius Plot (\(\ln k\) v/s \(\frac{1}{T}\)) of the first-order reaction is \(-5 \times 10^3 \, K\). The value of \(E_a\) of the reaction is. Choose the correct option for your answer. [Given \(R = 8.314 \, JK^{-1}mol^{-1}\)]

The rate constants of a reaction at 200 K and 300 K are 0.02 s^-1 and 0.04 s^-1. Ea for this reaction will be:

Rate of a particular reaction is represented by:
Rate = \(K [A]^0 [B]^2\)
The unit of rate constant K' in this case will be

A first order reaction is found to have a rate constant, \(k = 5.5 × 10^{-14} s^{-1}\). Find the half life of the reaction.

Unit of rate constant for zero order reaction is: