Van der Waals Equation Video Lessons

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Problem: Calculate the pressure that CCl4 will exert at 41 oC if 1.20 mol occupies 33.6 L , assuming thatCCl4 obeys the van der Waals equation. (Values for the van der Waals constants are a=20.4, b=0.1383.)

FREE Expert Solution

We’re being asked to calculate the pressure exerted by a CCl4 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 that CCl4 will exert at 41 oC if 1.20 mol occupies 33.6 L , assuming that

CCl4 obeys the van der Waals equation. (Values for the van der Waals constants are a=20.4, b=0.1383.)

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