Question

When concentration of q alone was tripled, the half-life did not change. When the concentration of p alone was made four times, the rate increased two times. The unit of rate constant for this reaction would be

Answer 1

If the rate doubles when the concentration of reactant is doubled, the reaction is the first-order. If the rate becomes 4-fold times (quadruples) when the concentration of the reactant is doubled, the reaction is the second-order and similarly, the third, the fourth, and the higher orders.