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WorksheetsDiffusion, Effusion, and Gas Stoichiometry
Total questions: 16
Worksheet time: 17mins
Gas escaping from a tiny opening in a football is an example of
Diffusion
Effusion
osmosis
effusion
diffusion
Which will travel faster: oxygen gas or helium gas?
O2
He
why would O2 effuse faster than CO2 in the same room
because O2 has more energy
because CO2 has a greater molar mass
because oxygen has a higher temperature
they will effuse the same because the temperature is fixed
Which of the following factors does NOT affect the diffusion of gases?
Temperature
Pressure
Color of the gas
Molar mass
What is the main difference between diffusion and effusion?
Diffusion occurs through a small hole, while effusion occurs in open space.
Effusion occurs through a small hole, while diffusion occurs in open space.
Diffusion involves liquid particles, while effusion involves gas particles.
Effusion involves liquid particles, while diffusion involves gas particles.
According to Graham's Law, if Gas A has a molar mass of 4 g/mol and Gas B has a molar mass of 16 g/mol, which gas will effuse faster?
Gas A
Gas B
Both gases will effuse at the same rate.
It depends on the temperature.
What happens to the rate of diffusion if the temperature of a gas increases?
The rate of diffusion decreases.
The rate of diffusion remains the same.
The rate of diffusion increases.
The rate of diffusion becomes zero.
Which of the following is NOT a factor affecting gas diffusion?
Concentration gradient
Surface area
Volume of the container
Type of container material
What is the molar volume of a gas at standard temperature and pressure (STP)?
24.5 L
22.4 L
18.0 L
20.0 L
78 L
2CO + O2 −-> 2CO2
How many liters of Carbon dioxide are produced from 10.0 L of Oxygen, at STP?
10.0 L
20.0 L
5010 L
0.0199
Mg + 2H2O --> Mg(OH)2 + H2
What volume of hydrogen will be produced at STP by the reaction 67.3 g of magnesium?
62.0 L
0.12 L
2.77 L
1.15 L
