Multiple Choice
If a gas is at constant temperature and the pressure increases, what happens to the volume of the gas according to Boyle's Law?
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7. Gases
Chemistry Gas Laws
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Which of the following best describes Boyle's Law?
A
The volume of a gas is inversely proportional to its temperature at constant pressure.
B
The pressure of a gas is inversely proportional to its volume at constant temperature.
C
The pressure of a gas is directly proportional to its temperature at constant volume.
D
The volume of a gas is directly proportional to its temperature at constant pressure.
Verified step by step guidance1
Recall that Boyle's Law describes the relationship between the pressure and volume of a gas when the temperature is held constant.
Boyle's Law states that the pressure of a gas is inversely proportional to its volume, which means as volume decreases, pressure increases, and vice versa, provided temperature remains constant.
Mathematically, Boyle's Law can be expressed as \(P \times V = k\), where \(P\) is pressure, \(V\) is volume, and \(k\) is a constant for a given amount of gas at constant temperature.
This means if you plot pressure versus volume, you get a hyperbolic curve, showing the inverse relationship.
Therefore, the correct description of Boyle's Law is: 'The pressure of a gas is inversely proportional to its volume at constant temperature.'
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