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Unformatted text preview: THE VAN DER WAALS EQUATION THE VAN DER WAALS EQUATION Example. What is the pressure of N 2 gas, if V = 3.50 L, n = 85.0 moles, and T = 293 K? ( 29 ( 29 820. 0.18 2045 P + = 2045/ 0.18 820 10,500 11,000 P atm == → Using PV =nRT, P = 7,120 atm (huge error). ( 29 2 2 1.39 85 3.50 85 0.0391 85 0.0821 293 3.5 x P x x x += 3.32 Excluded V makes P larger Attractive forces make P smaller Excluded volume more important ( 29 2 2 an P V nb nRT V += 2 sig. fig....
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This note was uploaded on 11/19/2010 for the course R 102 taught by Professor Morrison during the Spring '10 term at Rutgers.
 Spring '10
 MORRISON

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