Problem: Calculate the pressure exerted by 1.00 mol of Ne in a box that is 0.300 L and 298 K. For Ne, a = 0.211 L2 atm/mol2 and b = 0.0171 L/mol.

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We’re being asked to calculate the pressure exerted by a Ne in a box using the Van der Waal’s equation

The Van der Waals equation is shown below:

P+an2V2V-nb=nRT

P = pressure, atm
V = volume, L
n = # of moles, mol
R = gas constant = 0.08206 (Latm)/(molK)
T = temperature, K
a = polarity coefficient
= size coefficient


Let’s first isolate the pressure in the Van der Waals Equation:

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Problem Details

Calculate the pressure exerted by 1.00 mol of Ne in a box that is 0.300 L and 298 K. For Ne, a = 0.211 L2 atm/mol2 and b = 0.0171 L/mol.