Question detail
Explain why increasing the pressure of a gas in a reaction vessel typically results in a faster reaction rate.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Rate of reaction
Question
Explain why increasing the pressure of a gas in a reaction vessel typically results in a faster reaction rate.
Answer
Increasingthe pressure reduces the volume available for the gas, causingthe gas molecules to be closer together. This leads to an increased frequency of collisions between the molecules, which raises the likelihood of successful reactions occurring.
Explanation
This question assesses the ability to explain the relationship between pressure and reaction rate usingcollision theory. The answer effectively connects the concepts of pressure, volume, and collision frequency, demonstratinga deeper understandingof the factors affectingreaction rates.
Common mistake
Misunderstanding Pressure Effects
Students often think that increasing pressure will always increase the rate of reaction without considering the specific reaction conditions.
Emphasize that increasing pressure increases the concentration of gas molecules, leading to more frequent collisions, which generally increases the reaction rate.
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