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WorksheetsDiffusion and Effusion
Total questions: 15
Worksheet time: 15mins
Grahams law of effusion states that the rate of effusion of gases at the same temperature and pressure are _______.
directly proportional to the mass
inversely proportional to the molar mass
inversely proportional to the square root of the molar mass
directly proportional to the square root of the molar mass
Why would O2 effuse faster than CO2 if they are at the same conditions?
because O2 has more kinetic energy
because O2 has a smaller molar mass
because O2 has a higher temperature
they will effuse the same because the temperature is fixed
Effusion is
used to describe the combustibility of a gas.
the ability of a gas to escape through a tiny opening
what occurs after diffusion.
the ability of a gas to mix with other gases.
The picture below is an example of _________________ .
osmosis
effusion
diffusion
Gas escaping from a tiny opening in a football is an example of
Diffusion
Effusion
Tom Brady trying to win a championship game.
Lighter gases have a ________________ rate of effusion.
faster
slower
rate of effusion does not depend on mass.
Which will travel faster: oxygen gas or helium gas?
O2
He
Which of the following best describes diffusion?
The movement of particles from an area of high concentration to an area of low concentration
The movement of particles from an area of low concentration to an area of high concentration
The movement of particles through a semi-permeable membrane
The movement of particles in a circular motion
According to Graham's law, the rate of effusion of a gas is inversely proportional to the square root of its:
Volume
Pressure
Molar mass
Temperature
If a gas has a molar mass of 4 g/mol, how does its rate of effusion compare to a gas with a molar mass of 16 g/mol?
It effuses 2 times faster
It effuses 4 times faster
It effuses 2 times slower
It effuses 4 times slower
Which experiment would best demonstrate the concept of diffusion?
Observing the spread of a drop of food coloring in water
Measuring the time it takes for a gas to escape through a small hole
Heating a gas and measuring its expansion
Mixing two liquids and observing the reaction
What is the primary difference between diffusion and effusion?
Diffusion occurs in liquids, effusion occurs in gases
Diffusion involves movement through a barrier, effusion does not
Diffusion is the mixing of particles, effusion is the escape of particles through a small opening
Diffusion is faster than effusion
In a real-world application, why is effusion important in the separation of isotopes?
Because isotopes have different chemical properties
Because isotopes have different molar masses
Because isotopes react differently with other elements
Because isotopes have different volumes
Which gas would diffuse faster under the same conditions: hydrogen or nitrogen?
Hydrogen
Nitrogen
They diffuse at the same rate
It depends on the temperature
What happens to the rate of diffusion if the temperature is increased?
It increases
It decreases
It remains the same
It depends on the type of gas
