PHYSICAL CHEMISTRY IN BRIEF

CHAP. 4: APPLICATION OF THERMODYNAMICS [CONTENTS] 121 This relation may be written in the form H 2 −H 1 =Q+Wsh, (4.35) which may ...

CHAP. 4: APPLICATION OF THERMODYNAMICS [CONTENTS] 122 Solution From equation (4.35) and from the assumption that the process is ...

CHAP. 4: APPLICATION OF THERMODYNAMICS [CONTENTS] 123 4.3.5 The Joule-Thomson coefficient. Thedifferential Joule-Thomson coeffic ...

CHAP. 4: APPLICATION OF THERMODYNAMICS [CONTENTS] 124 Solution From the equation of state of an ideal gas we obtain ( ∂V ∂T ) p ...

CHAP. 4: APPLICATION OF THERMODYNAMICS [CONTENTS] 125 c c c μJT > (^0) E s TI^0 T C p XXX XyX  1 μJT = 0 ps=ps(T) Obr.4.3 ...

CHAP. 4: APPLICATION OF THERMODYNAMICS [CONTENTS] 126 Example Using the relation following from the van der Waals equation, esti ...

CHAP. 5: THERMOCHEMISTRY [CONTENTS] 127 Chapter 5 Thermochemistry Thermochemistry in a strict sense of the word means that part ...

CHAP. 5: THERMOCHEMISTRY [CONTENTS] 128 Solution 2 NaOH+H 2 SO 4 =Na 2 SO 4 + 2H 2 O and 0 =Na 2 SO 4 + 2H 2 O− 2 NaOH−H 2 SO 4 ...

CHAP. 5: THERMOCHEMISTRY [CONTENTS] 129 whereHmiis the molar enthalpy of a pure substance i. If a reaction proceeds at constant ...

CHAP. 5: THERMOCHEMISTRY [CONTENTS] 130 Example The chemical reaction CH 4 +CO 2 = 2CO+ 2H 2 (5.8) is the linear combination of ...

CHAP. 5: THERMOCHEMISTRY [CONTENTS] 131 5.2 Standard reaction enthalpy ∆rH◦ D Definition The standard reaction enthalpy is the r ...

CHAP. 5: THERMOCHEMISTRY [CONTENTS] 132 Note:It follows from the definition that the standard enthalpy of formation of elements ...

CHAP. 5: THERMOCHEMISTRY [CONTENTS] 133 Example Calculate the standard reaction enthalpy of combustion of methane using the equa ...

CHAP. 5: THERMOCHEMISTRY [CONTENTS] 134 5.3 Kirchhoff’s law—dependence of the reaction enthalpy on temperature For the derivativ ...

CHAP. 5: THERMOCHEMISTRY [CONTENTS] 135 Solution From the result of the preceding example we know that the enthalpy of combustio ...

CHAP. 5: THERMOCHEMISTRY [CONTENTS] 136 @@? @R  Tprod q≡∆H A(TA) B(TB) Reactor Treaction Obr.5.1:The enthalpy balance of ...

CHAP. 5: THERMOCHEMISTRY [CONTENTS] 137 TAto the temperature of the reactionTreaction, the second member is the enthalpy needed ...

CHAP. 5: THERMOCHEMISTRY [CONTENTS] 138 Note: In the enthalpy balance (5.18) it is assumed that the chemical reaction proceeds q ...

CHAP. 6: THERMODYNAMICS OF HOMOGENEOUS MIXTURES [CONTENTS] 139 Chapter 6 Thermodynamics of homogeneous mixtures While Chapter 3 ...

CHAP. 6: THERMODYNAMICS OF HOMOGENEOUS MIXTURES [CONTENTS] 140 Note:We will use the terms ideal mixture and ideal solution as sy ...