Three steel containers hold gas samples. The containers are all the same size and at the same temperature. One container has 4.0 g of helium, another has 28.0 g of nitrogen, and the third has 44.0 g of carbon dioxide. Pick the FALSE statement from the following list:
A.
The densities increase in the order helium < nitrogen < carbon dioxide.
B.
The number of molecules in all the containers is the same.
C.
The pressure in all three containers is the same.
D.
The average speed of all the molecules is the same.
Exam No：AP Chemistry Problem Set 7 Year：2024 Question No：APChemistry2024AP0300
Answer:
D
Knowledge points:
1.5 Atomic Structure and Electron Configuration
Solution:
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