Physical Chemistry Third Edition

82 2 Work, Heat, and Energy: The First Law of Thermodynamics Exercise 2.26 Using the values ofa,b, andcfrom Table A.6, calculate ...

2.6 Calculation of Enthalpy Changes of Processes without Chemical Reactions 83 only onnandT,∆Hfor the first step vanishes. For t ...

84 2 Work, Heat, and Energy: The First Law of Thermodynamics Exercise 2.27 a.Find∆Ufor the process of the previous example. b.Fi ...

2.6 Calculation of Enthalpy Changes of Processes without Chemical Reactions 85 273.15 Step 2: Reversible process Irreversible pr ...

86 2 Work, Heat, and Energy: The First Law of Thermodynamics Assume that the heat capacities are constant and equal to their val ...

2.7 Calculation of Enthalpy Changes of a Class of Chemical Reactions 87 In a mixture of ideal gases, each substance behaves as t ...

88 2 Work, Heat, and Energy: The First Law of Thermodynamics by∆fH◦(i) and is defined to be the standard-state enthalpy change o ...

2.7 Calculation of Enthalpy Changes of a Class of Chemical Reactions 89 EXAMPLE2.29 Find the standard-state enthalpy change of t ...

90 2 Work, Heat, and Energy: The First Law of Thermodynamics Process 2: Isothermal reaction at temperature T 2 Process 1: Isothe ...

2.7 Calculation of Enthalpy Changes of a Class of Chemical Reactions 91 All reactants and products are included in this sum. Bec ...

92 2 Work, Heat, and Energy: The First Law of Thermodynamics Process 3: Temperature change of products (and possibly remaining r ...

2.7 Calculation of Enthalpy Changes of a Class of Chemical Reactions 93 changes (see Chapter 7). The calculation is more complic ...

94 2 Work, Heat, and Energy: The First Law of Thermodynamics PROBLEMS Section 2.7: Calculation of Enthalpy Changes of a Class of ...

2.8 Calculation of Energy Changes of Chemical Reactions 95 The productPVis given by PVP(V(s)+V(l)+V(g)) (2.8-2) whereV(s) is th ...

96 2 Work, Heat, and Energy: The First Law of Thermodynamics b. V 2 (2.000 mol)(18 cm^3 mol−^1 )36 cm^3 ^3.^6 ×^10 −^5 m^3 V ...

2.8 Calculation of Energy Changes of Chemical Reactions 97 Thermometer Bucket Bomb Stirrer Stirring motor Outer case Ignition te ...

98 2 Work, Heat, and Energy: The First Law of Thermodynamics For 1 mol of reaction ∆U− ( 4. 956 × 104 J ) ( 1 .234 g ) ( 128 .1 ...

2.8 Calculation of Energy Changes of Chemical Reactions 99 Exercise 2.31 What will be the rise in temperature of the calorimeter ...

100 2 Work, Heat, and Energy: The First Law of Thermodynamics From enthalpy changes of formation at 298.15 K, ∆H∆fH◦(C 2 H 6 )− ...

2.8 Calculation of Energy Changes of Chemical Reactions 101 b. Compute the standard-state enthalpy change for this reaction at 2 ...