Question Detail

CHM 101 CHM 101 Past Questions Objective Question
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Question

A first-order reaction is 50% complete in 30 minutes. What is the half-life of the reaction?
Options
A 15 min
B 30 min
Correct Answer
C 45 min
D 60 min
Correct Answer

Option B is the correct answer.

Detailed Explanation

The half-life of a reaction is the time it takes for the reactant concentration to decrease by half. For a first-order reaction, this value is constant, so if it is 50% complete in 30 minutes, the half-life is 30 minutes.

Hint

Half-life is the time required for the concentration to become half of its initial value.

Question Info

Course: CHM 101
Topic: CHM 101 Past Questions
Type: Objective
Difficulty: Not specified
Question 1250 of 1872
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