The half-life of a reaction is inversely proportional to the square of the

The Halflife Of A Reaction Is Inversely Proportional To The Chemistry Question

The half-life of a reaction is inversely proportional to the square of the initial concentration of the reactant. Then the order of the reaction is

Options

(a) 0
(b) 1
(c) 2
(d) 3

Correct Answer:

3

Explanation:

t(1/2) = ∝ 1 / a² .

We know that t(1/2) ∝ 1/ a (n-1),

⇒ a² = a (n-1) or n -1 = 2 ⇒ n = 3.

Thus reaction is of third order.

Related Questions:

  1. The number of d-electrons in Fe²⁺(Z=26) is not equal to the number of electrons
  2. Which of the following is obtained when auric chloride reacts with sodium
  3. Cassiterite is concentrated by
  4. Which of the following compound is not coloured
  5. Which of the following hydrides is electron deficient molecule?

Topics: Electrochemistry and Chemical Kinetics (87)
Subject: Chemistry (2512)

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