Multiple Choice
When collecting gases over water, which correction must be made to determine the pressure of the collected gas?
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7. Gases
Gas Stoichiometry
Multiple Choice
In the context of gas stoichiometry, which variable is held constant in Charles's Law?
A
Amount of gas (n)
B
Pressure
C
Volume
D
Temperature
Verified step by step guidance1
Recall that Charles's Law describes the relationship between the volume and temperature of a gas.
Charles's Law states that the volume of a gas is directly proportional to its absolute temperature when the pressure and amount of gas are held constant.
Identify the variables involved: volume (V), temperature (T), pressure (P), and amount of gas (n).
Since Charles's Law focuses on how volume changes with temperature, the pressure (P) and amount of gas (n) must remain constant to observe this relationship clearly.
Therefore, the variable held constant in Charles's Law is the pressure.
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