Consider the combustion of X (unknown compound): 2 X + 3 02 2 CO2 + 4 H2O with AH'rxn = -1452.8 kJ/mol. Calculate AH'f of X. Given: AH*f(CO2) = -393.5 KJImol: AH f(H20) = -285.8 kJ/mol O -238.7 k.J/mol O -679.3 kJ/mol O +238,7 kJ/mol 477.4 kJ/mol

Physical Chemistry
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Author:Ball, David W. (david Warren), BAER, Tomas
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Chapter2: The First Law Of Thermodynamics
Section: Chapter Questions
Problem 2.40E: In a constant-volume calorimeter, 35.0g of H2cools from 75.3C to25.0C. Calculate w, q, U, and H for...
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Consider the combustion of X (unknown compound): 2 X + 3 02 - 2 CO2 + 4
H2O with AH'rxn = -1452.8 kJ/mol. Calculate AH°f of X. Given: AH*f(CO2) = -393.5
kJ/mol: AH'f(H20) = -285.8 kJ/mol
O -238.7 kJ/mol
O -679 3 kJ/mol
O +238,7 kJ/mol
O 477.4 kJ/mol
Transcribed Image Text:Consider the combustion of X (unknown compound): 2 X + 3 02 - 2 CO2 + 4 H2O with AH'rxn = -1452.8 kJ/mol. Calculate AH°f of X. Given: AH*f(CO2) = -393.5 kJ/mol: AH'f(H20) = -285.8 kJ/mol O -238.7 kJ/mol O -679 3 kJ/mol O +238,7 kJ/mol O 477.4 kJ/mol
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