The standard enthalpy of formation of gaseous H 2 O at 298.15 K is -241.82 kJ mol

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The standard enthalpy of formation of gaseous H2O at 298.15 K is -241.82 kJ mol-1. Using the ideas contained in Figure 7-16, estimate its value at 100.0 °C given the following values of the molar heat capacities at constant pressure: H2O(g): 33.58 J K-1 mol-1; H2(g): 28.84 J K-1 mol-1; O2(g): 29.37 J K-1 mol-1. Assume the heat capacities are independent of temperature.

Figure 7-16

Enthalpy Reactants (b) A.HT, Products T Measure (c) (a) Use equation (7.5) Reactants A,HT2 Products Use

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General Chemistry Principles And Modern Applications

ISBN: 9780132931281

11th Edition

Authors: Ralph Petrucci, Jeffry Madura, F. Herring, Carey Bissonnette

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