Multiple Choice
Which variables are directly related in Gay-Lussac's law for gases?
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7. Gases
Gas Stoichiometry
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As the pressure in the beaker was increased, what happened to the volume of the gas, assuming temperature and amount of gas remained constant?
A
The volume of the gas decreased.
B
The volume of the gas doubled.
C
The volume of the gas remained unchanged.
D
The volume of the gas increased.
Verified step by step guidance1
Identify the gas law that relates pressure and volume when temperature and amount of gas are constant. This is Boyle's Law.
Recall Boyle's Law formula: \(P_1 \times V_1 = P_2 \times V_2\), where \(P\) is pressure and \(V\) is volume.
Understand that if pressure increases (\(P_2 > P_1\)) and temperature and amount of gas remain constant, the volume must adjust to keep the product \(P \times V\) constant.
Since pressure and volume are inversely proportional in Boyle's Law, an increase in pressure causes a decrease in volume.
Therefore, as the pressure in the beaker increases, the volume of the gas decreases.
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