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# Van der Waals equation?

can you write van der Waals equation and units? also, I don't know unit of a,b

### 2 Answers

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- billrussell42Lv 73 weeks ago
van der Waals equation

(P + (n²a/V²))(V – nb) = nRT

n = number of moles

R = gas constant = 0.08206 (atm∙L)/(mol∙K)

8.314 L∙kPa/mol∙K

0.08314 L∙bar/mol∙K

62.36 L∙torr/mol∙K

62.36 L∙mmHg/mol∙K

T = temperature in kelvins

P = absolute pressure in atm, kPa, bar, torr

V = volume in liters

b = volume occupied by 1 mole of the gas molecules in L/mol

a = a constant that depends on the gas, is a measure of the

average attraction between particles, in L²•bar/mol²

or L²kPa/mol²

- Anonymous3 weeks ago
Google 'Van der Waals' equation

a and b depends on the gas.

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