Embibe Experts Solutions for Chapter: Chemical Kinetics, Exercise 1: GUJCET 2018

At $27°\mathrm{C}$ temperature, time required for $75\%$ completion of a first order reaction is $20$ seconds. What will be its rate constant?

The units for the rate constant and the rate of reaction are same for a reaction. What will be the order of the reaction?

The half-life period for a radioactive substance is $15$ minutes. How many grams of this radioactive substance is decayed from $50$ gram of substance after one hour?

The rate constant value for a reaction is $1.75\times {10}^2{ \mathrm{L}}^2{ \mathrm{mol}}^{-2}{\sec }^{-1}.$ The half-life period ${\mathrm{t}}_{1/2}\propto$_______.

At $298 \mathrm{K}$ temperature the activation energy for the reaction ${\mathrm{x}}_2+{\mathrm{y}}_2\to 2\mathrm{xy}+20 \mathrm{kJ}$ is $15 \mathrm{kJ}.$ What will be the activation energy for the reaction $2\mathrm{xy}\to {\mathrm{x}}_2+{\mathrm{y}}_2?$