Chemical Kinetics Question 317

Question: The rate constant of a zero order reaction is 2.0×102mol,L1s1 . If the concentration of the reactant after 25 seconds is 0.5 M. What is the initial concentration-

Options:

A) 0.5 M

B) 1.25 M

C) 12.5 M

D) 1.0,M

Show Answer

Answer:

Correct Answer: D

Solution:

[d] For a zero order reaction Rate constant = k=axt

2×102=a0.525

a0.5=0.5

a=1.0M



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