Multiple Choice
What is the volume, in liters, of 62.3 g of nitrogen gas (N_2) at standard temperature and pressure (STP)?
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7. Gases
Gas Stoichiometry
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Which description best fits a gas?
A
It has a fixed volume but no fixed shape.
B
It has a fixed shape but no fixed volume.
C
It has no fixed shape and no fixed volume.
D
It has a fixed shape and fixed volume.
Verified step by step guidance1
Recall the basic properties of the three common states of matter: solids, liquids, and gases.
Understand that solids have both fixed shape and fixed volume, meaning they do not change shape or size easily.
Recognize that liquids have a fixed volume but no fixed shape, so they take the shape of their container but do not expand to fill it.
Know that gases have neither fixed shape nor fixed volume, meaning they expand to fill the entire volume of their container and do not have a definite shape.
Therefore, the description that best fits a gas is that it has no fixed shape and no fixed volume.
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