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CHM 101 CHM 101 Past Questions Objective Question

Question

For a second order reaction, the half-life is equal to
Options
A t₁/₂ = 0.693/k
B t₁/₂ = k
C t₁/₂ = 1/k[A]₀
Correct Answer
D t₁/₂ = k/0.693
Correct Answer

Option C is the correct answer.

Detailed Explanation

For a second-order reaction (rate = k[A]²), the half-life formula is t₁/₂ = 1/(k[A]₀), which depends on the initial concentration.

Hint

Half-life for second order is inversely proportional to initial concentration.

Question Info