Question Detail

CHM 101 CHM 101 Past Questions Objective Question
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Question

For the overall chemical reaction shown below, which one of the following statements can be rightly assumed? 2H₂S(g) + O₂(g) → 2S(s) + 2H₂O(l)
Options
A The reaction is second-order overall.
B The reaction is third-order overall.
C The rate law cannot be determined from the information given.
Correct Answer
D The rate law is rate = k[H₂S]²[O₂]
Correct Answer

Option C is the correct answer.

Detailed Explanation

The rate law for a reaction cannot be determined from the balanced chemical equation alone. It must be determined experimentally. The stoichiometric coefficients do not directly give the order of the reaction.

Hint

Rate laws are empirical; they depend on the mechanism, not the balanced equation.

Question Info

Course: CHM 101
Topic: CHM 101 Past Questions
Type: Objective
Difficulty: Not specified
Question 1676 of 1872
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