# Chap7prac - Chapter 7 Practice Problems(P7.1 G H TS G G ig...

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Chapter 7 Practice Problems To accompany Introductory Chemical Engineering Thermodynamics © J.R. Elliott, C.T. Lira, 2001, all rights reserved. (3/10/2007) 1 of 5 (P7.1) TS H G R S S RT H H RT G G ig ig ig = …………………………………Eqn. 7.21 ( ) 1 1 2 3 1 0 2 / 5 0 + + = + = Z d b RT a T Z d T Z T RT H H ig ρ ρ ρ ρ ρ ρ ρ ρ ρ note: ) ( log 1 b ax a b ax dx e + = + ( ) ( ) 1 1 ln 1 2 3 1 1 ln 1 2 3 2 / 3 0 2 / 3 + + = + + = Z b b RT a Z R a b b T ρ ρ ρ ( ) ( ) Z d Z T Z T R S S ig ln 1 0 + = ρ ρ ρ ρ ………………………..Eqn. 7.23 ( ) ( ) ( ) ( ) ( ) Z b RT a b b b RT a Z d b RT a b b d b RT a ln 1 ln 1 ln 1 ln 1 2 3 ln 1 1 1 2 3 2 / 3 2 / 3 0 2 / 3 0 2 / 3 + + + + + = + + + = ρ ρ ρ ρ ρ ρ ρ ρ ρ ρ ρ ( ) ( ) ( ) ( ) ( ) ( ) Z Z b bRT a b RT G G Z b RT a b b b RT a Z b b RT a R S S RT H H RT G G ig ig ig ig ln 1 1 ln 1 ln ln 1 ln 1 ln 1 ln 1 2 3 1 1 ln 1 2 3 2 / 3 2 / 3 2 / 3 2 / 3 + + = + + + + + + + = ρ ρ ρ ρ ρ ρ Or by using Eqn. (7.26) ( ) ( ) Z Z d Z RT G G ig ln 1 1 0 + = ρ ρ ρ ( ) ( ) Z b bRT a b RT G G ig 1 ln 1 ln 2 / 3 + + = ρ ρ ( ) ( ) Z Z d b RT a b b RT G G ig ln 1 1 1 0 2 / 3 + + = ρ ρ ρ ρ ρ

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Chapter 7 Practice Problems To accompany Introductory Chemical Engineering Thermodynamics © J.R. Elliott, C.T. Lira, 2001, all rights reserved. (3/10/2007) 2 of 5 (P7.2) r T b Z / 1 ρ = Depature function 1 0 + = Z d T Z T RT H H ig ρ ρ ρ ρ …………Eqn. 7.24 r r r r r r r ig T b T b T b T T b d T b T RT H H ρ ρ ρ ρ ρ ρ ρ
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