Scelta multipla
Which of the following observations best supports Boyle's Law?
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7. Gases
Chemistry Gas Laws
Scelta multipla
According to Boyle's Law, what happens to the volume of a gas at constant temperature when the pressure is increased?
A
The volume decreases.
B
The volume remains unchanged.
C
The volume increases.
D
The volume doubles.
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Recall Boyle's Law, which states that for a given amount of gas at constant temperature, the pressure and volume are inversely proportional. This means when one increases, the other decreases.
Express Boyle's Law mathematically as \(P \times V = k\), where \(P\) is pressure, \(V\) is volume, and \(k\) is a constant for a fixed amount of gas at constant temperature.
Understand that if the pressure \(P\) increases, to keep the product \(P \times V\) constant, the volume \(V\) must decrease accordingly.
Therefore, an increase in pressure results in a decrease in volume, assuming temperature and amount of gas remain constant.
This explains why the correct answer is: 'The volume decreases.'
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