Paper: CSIR-NET June 2017 · Subject: Physical Chemistry · Chapter: Chemical Kinetics · Topic: Chemical Kinetics – General · Marks: 2 · Difficulty: Medium
In kinetic study of a chemical reaction, slopes are drawn at different times in the plot of concentration of reactants versus time. The magnitude of slopes with increase of time
(a)remains unchanged
(b)increases
(c)decreases
(d)increases and decreases periodically
Answer
Answer: C ✓ checked by 4AB · confidence high
The source book printed no answer; this one was worked out and checked — see the explanation.
Explanation
The slope of [reactant] vs t is the rate, which falls as the reactant is consumed (for any positive order).