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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.
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Topics: Electrochemistry and Chemical Kinetics
(87)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The combustion enthalpies of carbon , hydrogen and methane are -395.5 kJ mol⁻¹
- Cosin used to detect end point of precipitation titration by absorption is called
- For an endothermic reaction the value of ΔS is positive.The reaction is
- The amount of zinc required to produce 224mL of H₂ at STP on treatment with dilute H₂SO₄
- A given metal crystallizes out with a cubic structure having edge length of 361 pm.
Topics: Electrochemistry and Chemical Kinetics (87)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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