Question

In: Chemistry

Which of the following statements is FALSE?

Which of the following statements is FALSE?

a. The rate of second order reactions is dependent on concentration.
b. The rate of a first order reaction is dependent on concentraion.
c. The half life of a second order reaction is not dependent on concentration.
d. The half life of a zero order reaction is dependent on concentration.
e. None of the statements are FALSE.

Solutions

Expert Solution

Ans. Correct option: C. The half-life of a second order reaction is NOT dependent on concentration.

Option a and b are true because the rate of first and second order reaction depend on initial concertation of reactants.

# Option c. FALSE. Half-life of second order reaction is given by, t½ = 1 / (k[A]0)

            Where, k= rate constant      , [A]0 = Initial concertation

So, half-life of second order reaction is dependent of initial concertation.

Option d. True. Half-life of zero order reaction is given by, t½ = [A]0 / 2k

Therefore, half-life of zero order reaction depends on both the initial concertation as well as rate constant.

queen_honey_blossom answered 2 years ago
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