I have a suggestion.Why not pick a REAL gas, calculate V under ideal conditions, then assign a = 0 and b = 0.5 and calculate for the same gas using the van der Waals equation. Then you don't need to guess.
I could do that but you can do that too.
Consider a hypothetical gas which has the following Van der Waals constants:
a = 0.0 L^2 bar mol-2
b = 0.5 L mol-1
Under conditions of very high pressures, what would you predict about the experimental volume of the gas?
Possible Answers:
The volume would be lower than predicted by the Ideal Gas Law
The volume would be higher than predicted by the Ideal Gas Law
The volume would be exactly the same as predicted by the Ideal Gas Law
I think the answer would be "The volume would be lower than predicted by the Ideal Gas Law," because it's high pressure. What do you think can you explain please.
1 answer