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Multiple Choice
According to Avogadro's Law, which of the following is true about the volume of a gas at a given temperature and pressure?
A
The volume is inversely proportional to the number of moles of gas.
B
The volume is independent of the number of moles of gas.
C
The volume is directly proportional to the square of the number of moles of gas.
D
The volume is directly proportional to the number of moles of gas.
Verified step by step guidance
1
Avogadro's Law states that the volume of a gas is directly proportional to the number of moles of the gas, provided the temperature and pressure are constant.
To understand this, consider the equation for Avogadro's Law: \( V \propto n \), where \( V \) is the volume and \( n \) is the number of moles.
This means that if you increase the number of moles of gas, the volume will increase proportionally, assuming temperature and pressure remain unchanged.
Conversely, if you decrease the number of moles, the volume will decrease proportionally under the same conditions.
This relationship is fundamental in understanding how gases behave under constant temperature and pressure, and it is a key principle in the study of gases in chemistry.