PHYSICAL CHEMISTRY IN BRIEF

CHAP. 6: THERMODYNAMICS OF HOMOGENEOUS MIXTURES [CONTENTS] 141 in which case equations (6.3) to (6.9) apply, or, more often, fro ...

CHAP. 6: THERMODYNAMICS OF HOMOGENEOUS MIXTURES [CONTENTS] 142 Solution Since the enthalpy and internal energy of an ideal gas a ...

CHAP. 6: THERMODYNAMICS OF HOMOGENEOUS MIXTURES [CONTENTS] 143 6.2 Integral quantities. The assumption of an ideal mixture (6.1) ...

CHAP. 6: THERMODYNAMICS OF HOMOGENEOUS MIXTURES [CONTENTS] 144 Example A mixture containing 40 mole percent acetone(1) and 60 mo ...

CHAP. 6: THERMODYNAMICS OF HOMOGENEOUS MIXTURES [CONTENTS] 145 ∆GE = ∆GM−RT ∑k i=1 xilnxi, (6.34) ∆FE = ∆FM−RT ∑k i=1 xilnxi. (6 ...

CHAP. 6: THERMODYNAMICS OF HOMOGENEOUS MIXTURES [CONTENTS] 146 Solution It follows from the specification thatQ=− 6870 J. Substi ...

CHAP. 6: THERMODYNAMICS OF HOMOGENEOUS MIXTURES [CONTENTS] 147 Solution Substituting into (6.36) and (6.39) gives ∆solHethanol = ...

CHAP. 6: THERMODYNAMICS OF HOMOGENEOUS MIXTURES [CONTENTS] 148 6.3 Differential quantities. Instead of integral quantities descr ...

CHAP. 6: THERMODYNAMICS OF HOMOGENEOUS MIXTURES [CONTENTS] 149 6.3.2.2 Relations between partial molar quantities. The relations ...

CHAP. 6: THERMODYNAMICS OF HOMOGENEOUS MIXTURES [CONTENTS] 150 6.3.3 Determination of partial molar quantities. While determinin ...

CHAP. 6: THERMODYNAMICS OF HOMOGENEOUS MIXTURES [CONTENTS] 151 b b Vm V 2 Vm,• 2 V 1 Vm,• 1 id.mix Vm=f(x 1 ) x 1 A A A AAU b @ ...

CHAP. 6: THERMODYNAMICS OF HOMOGENEOUS MIXTURES [CONTENTS] 152 6.3.4 Excess partial molar quantities For real mixtures we someti ...

CHAP. 6: THERMODYNAMICS OF HOMOGENEOUS MIXTURES [CONTENTS] 153 6.3.5 Differential heat of solution and dilution If we denote the ...

CHAP. 6: THERMODYNAMICS OF HOMOGENEOUS MIXTURES [CONTENTS] 154 c α ( ∂∆HsolI, 2 ∂nrel ) =H E 1 =H^1 −H m, 1 H ⊗ 2 =H^2 −H ⊗ m, ...

CHAP. 6: THERMODYNAMICS OF HOMOGENEOUS MIXTURES [CONTENTS] 155 6.4 Thermodynamics of an open system and the chemical potential 6 ...

CHAP. 6: THERMODYNAMICS OF HOMOGENEOUS MIXTURES [CONTENTS] 156 Note:Since these relations are derivatives at constant natural va ...

CHAP. 6: THERMODYNAMICS OF HOMOGENEOUS MIXTURES [CONTENTS] 157 For the choice of the standard state [see6.5.3] of a pure compone ...

CHAP. 6: THERMODYNAMICS OF HOMOGENEOUS MIXTURES [CONTENTS] 158 6.5 Fugacity and activity 6.5.1 Fugacity The fugacity of a pure s ...

CHAP. 6: THERMODYNAMICS OF HOMOGENEOUS MIXTURES [CONTENTS] 159 For a real mixture we have fi=φixip , (6.81) whereφiis the fugac ...

CHAP. 6: THERMODYNAMICS OF HOMOGENEOUS MIXTURES [CONTENTS] 160 Example Calculate the fugacity coefficient and fugacity of carbon ...