Calculate the critical temperature (in K ) of a van der Waals gas for which $P_{c}$ is 100 atm and b is $50 cm^{3} mol^{- 1}$ .
[Use: $R = 0.0821 L a t mm o l^{- 1} K^{- 1}$ ]

Question

Calculate the critical temperature (in K ) of a van der Waals gas for which P c ​ is 100 atm and b is 50 cm 3 mol − 1 . [Use: R = 0.0821 L a t mm o l − 1 K − 1 ]

TestHub · Accepted Answer

a = P c ​ 27 b 2 T c ​ = 27 Rb 8 a ​ = 27 Rb ( 8 ) ( P c ​ 27 b 2 ) ​ = R 8 P c ​ b ​ = 0.08206 dm 3 atmK − 1 mol − 1 ( 8 ) ( 100 atm ) ( 0.050 dm 3 mol − 1 ) ​ = 487.2 K

Chemistry - Real Gas Question with Solution | TestHub

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