Chemical kinetics links reaction rates to concentration, temperature, and mechanism. It is a high-scoring chapter in CBSE Class 12 and also forms the base for many JEE/NEET-style numerical problems involving integrated rate laws, half-life relations, pre-equilibrium/steady-state ideas, and Arrhenius activation energy calculations.
25
Minutes
4
Questions
1 / -0
Marking
Q1. A first-order reaction has a rate constant . The time required for the concentration to fall to of its initial value is
Q2. For the reaction the initial rate data at a fixed temperature are:
Experiment I:
Experiment II:
Experiment III:
Which expression represents the rate law and what is the value of the rate constant (with units)?
Q3. For a reaction obeying , experimental observation shows that when is increased by a factor of , the initial rate increases by a factor of . The order with respect to is
Q4. Consider consecutive first-order reactions with , and initial . At what time does attain its maximum value?