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MCAT Question of the Day
Q:
Pure HCl and HBr can both be found in gaseous states. The two gasses are placed in identical molar amounts into chambers of equal volumes. Assuming the two molecules are only equal in size, what is the relationship between the pressures of the different compounds?
A
HCl has a lower pressure because it is more polar than HBr and its attractive forces cause less pressure against the chamber walls.
B
HCl has a higher pressure because it is more polar than HBr and its attractive forces cause more pressure against the chamber walls.
C
HBr has a lower pressure because it is more polar than HCl and its attractive forces cause less pressure against the chamber walls.
D
HBr has a higher pressure because it is more polar than HCl and its attractive forces cause more pressure against the chamber walls.
Gases
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