Exam-style question
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What happens to the pressure of a gas when its volume decreases at constant temperature?.
- A.The pressure increases.
- B.The pressure decreases.
- C.The pressure remains constant.
- D.The pressure fluctuates.
Model answer
What a good answer should say
- The pressure increases.
Explanation
Why this works
According to Boyle's Law, when the volume of a gas decreases while the temperature remains constant, the pressure increases. This is because the same number of gas molecules occupy a smaller space, leading to more frequent collisions with the walls of the container.
Therefore, the implication is that reducing volume directly affects pressure, confirming the inverse relationship described by Boyle's Law.
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