Non-Ideal Gases and the Van der Waals Equation
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Chemistry, Science, Physics, Engineering
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11th Grade - University
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Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is one of the assumptions made about ideal gases in kinetic molecular theory?
Gas particles move at very low speeds.
Gas particles are dimensionless points.
Gas particles interact strongly with each other.
Gas particles have significant volume.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Under what conditions do gases deviate from ideal behavior?
High temperatures and high pressures
Low temperatures and low pressures
Low temperatures and high pressures
High temperatures and low pressures
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the Van der Waals equation account for that the ideal gas law does not?
The speed of gas particles
The shape of gas particles
The volume and interactions of gas particles
The color of gas particles
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the Van der Waals equation modify the pressure term?
By adding a correction factor related to particle attraction
By adding a constant to the pressure
By subtracting a constant from the pressure
By multiplying the pressure by a constant
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the example given, what was the pressure calculated using the ideal gas law?
31.2 atmospheres
34.6 atmospheres
33.5 atmospheres
32.4 atmospheres
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is the Van der Waals equation more accurate for carbon dioxide in the example?
Because carbon dioxide is a solid at room temperature
Because carbon dioxide has a high boiling point
Because carbon dioxide is a nonpolar molecule
Because carbon dioxide is a polar molecule
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What would make the deviation between the ideal gas law and Van der Waals equation more significant?
Increasing the pressure to hundreds of atmospheres
Lowering the temperature further
Using a smaller container
Decreasing the number of moles
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