Explanation Given: Change in temperature (ΔT) =10°C = 283 K Dimensions (volume) of the house = 30.0m×30.0m×3.0m=2700m 3 Specific heat capacity of air, cair = 30 J/K-mol Formula: 1. Enthalpy of combustion: ΔH non =Σn products ΔH 0 f(products) -Σn reants ΔH 0 f(reachants) ---(1) n products and n reachants the number of moles of products and reactants respectively ΔH 0 f(products) and ΔH 0 f(reactants) are the standard heats of formation of the products and reactants respectively 2. Heat required to raise the temperature of air: q=m air ×c air ×ΔT-----(2) m air = mass of air c air = specific heat capacity of air ΔT= change in temperature Calculation: Step I: Find enthalpy of combustion of methane CH 4 (g)+2O 2 (g)→+2H 2O(g) Based on equation 1 we have: ΔH non =[1×H f 0 (CO 2 )+2×ΔH f 0 (H 2 O)]-[1×ΔH f 0 (CH 4 +2×ΔH 0 f (O 2 )] Substituting for the respective enthalpies formation: ΔH non =[1×(−393...

Solutions Manual for for Chemistry: Structure and Properties

1st Edition

ISBN: 9780321965295

Author: Nivaldo J. Tro, Kathy Thrush Shaginaw, Mary Beth Kramer

Publisher: PEARSON

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Chapter 10, Problem 123E

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To determine: The mass of methane required to raise the temperature of air in the house by

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Chapter 10, Problem 122E

Chapter 10, Problem 124E

Chapter 10 Solutions

Solutions Manual for for Chemistry: Structure and Properties

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The mass of methane required to raise the temperature of air in the house by

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