Van der Waals Equation Video Lessons

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Problem: The ideal gas law tends to become inaccurate when a. the pressure is lowered and molecular interactions become significant. b. the pressure is raised and the temperature is lowered. c. the temperature is raised above the temperature of STP.d. large gas samples are involved.e. the volume expands beyond the standard molar volume.

FREE Expert Solution

Among the 5 options, we´re asked to state which is the case when the Ideal Gas Law becomes inaccurate.


When dealing with the Ideal Gas Law:

PV=nRT

Where

P = pressure of the gas

V = volume of the gas

n = number of moles of gas

R = Ideal gas constant

T = temperature of the gas


But based on the Kinetic Molecular Theory, ideal gases are imaginary.


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Problem Details

The ideal gas law tends to become inaccurate when 

a. the pressure is lowered and molecular interactions become significant. 

b. the pressure is raised and the temperature is lowered. 

c. the temperature is raised above the temperature of STP.

d. large gas samples are involved.

e. the volume expands beyond the standard molar volume.


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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Van der Waals Equation concept. You can view video lessons to learn Van der Waals Equation. Or if you need more Van der Waals Equation practice, you can also practice Van der Waals Equation practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Sumner's class at UF.