List of top Chemistry Questions on Chemical Kinetics asked in KCET

The rate at which a substance reacts depends on its

Which of these does not influence the rate of reaction?

The reaction,$2SO_{2(g)} + O_{2(g)} \leftrightharpoons 2SO_{3(g)}$ is carried out in a $1\, dm^3$ vessel and $2 \,dm^3$ vessel separately. The ratio of the reaction velocities will be :

Temperature coefficient of a reaction is 2. When temperature is increased from 30$^\circ$C to 100$^\circ$C, rate of the reaction increases by

For certain first order reaction m, 75% of the reaction complete in 30 min. How much time it require to complete 99.9% of the reaction?

For the reaction, \( A \rightleftharpoons B \), \( E_a = 50 \, \text{kJ/mol} \) and \( \Delta H = -20 \, \text{kJ/mol} \). When a catalyst is added, \( E_a \) decreases by \( 10 \, \text{kJ/mol} \). What is the \( E_a \) for the backward reaction in the presence of the catalyst?  

For the reaction PCI₅ → PCI₃ + Cl₂, rate and rate constant are 1.02×10^-4 mol L^-1s^-1 and 3.4×10^-5s^-1 respectively at a given instant. The molar concentration of PCI₅, at that instant is:

Which one of the following does not represent Arrhenius equation?

Which one of the following nitrate will decompose to give NO₂ on heating ?