Homework Assignment 2 1. An ideal gas mixture at T = 2000 K has the following composition: 02 0.086 H₂O 0.019 0.326 OH O H CO CO2 0.060 0.012 0.030 0.319 0.148 Species H2 Mole fraction The molar specific enthalpies and the constant pressure molar specific heats for the various species at T = 2000 K are listed in the table, below. Species H2 02 h (kJ/kmol) 52968 59169 H₂O -169040 OH 92761 O H 284909 253352 CO -53804 CO2 -302126 Cp (kJ/kmol-K) 34.236 37.788 51.143 34.635 20.819 20.786 36.721 60.433 == = (a) Calculate, for the mixture, the molar mass (Mm), the molar specific enthalpy (hm), the specific enthalpy (hm), the specific gas constant (Rm) and the specific heat ratio (Ym). {Partial Ans: hm - 4059 kJ/kg, Rm 356.3 J/kg-K} (b) The mixture is formed from the reaction of a hydrocarbon (CH1.96) and oxygen (02). Calculate the number of moles of the hydrocarbon and the oxygen in the reactant mixture. From the result, calculate their mole fractions. { Partial Ans.: XCH1.96 0.4705, Xo₂ = 0.5295} =
Homework Assignment 2 1. An ideal gas mixture at T = 2000 K has the following composition: 02 0.086 H₂O 0.019 0.326 OH O H CO CO2 0.060 0.012 0.030 0.319 0.148 Species H2 Mole fraction The molar specific enthalpies and the constant pressure molar specific heats for the various species at T = 2000 K are listed in the table, below. Species H2 02 h (kJ/kmol) 52968 59169 H₂O -169040 OH 92761 O H 284909 253352 CO -53804 CO2 -302126 Cp (kJ/kmol-K) 34.236 37.788 51.143 34.635 20.819 20.786 36.721 60.433 == = (a) Calculate, for the mixture, the molar mass (Mm), the molar specific enthalpy (hm), the specific enthalpy (hm), the specific gas constant (Rm) and the specific heat ratio (Ym). {Partial Ans: hm - 4059 kJ/kg, Rm 356.3 J/kg-K} (b) The mixture is formed from the reaction of a hydrocarbon (CH1.96) and oxygen (02). Calculate the number of moles of the hydrocarbon and the oxygen in the reactant mixture. From the result, calculate their mole fractions. { Partial Ans.: XCH1.96 0.4705, Xo₂ = 0.5295} =
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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