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Real Gases and Ideal-Gas Assumptions
Worksheet
Grade Level
Chemistry
11.57 Real Gases and Ideal-Gas Assumptions
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At the same n, T, and external pressure, the ideal gas law predicts a volume of 2.00 L, but a real gas sample has a volume of 1.92 L. Which explanation best fits the smaller real volume?
A
Excluded volume alone makes the gas occupy less volume than the particles allow.
B
The gas particles have no volume and no attractions.
C
Attractions pull particles together, so less volume is needed to produce the same pressure.
D
The temperature must be negative because the volume is smaller.
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