CHM
2045C Module Seven Sample Exam
Module
Seven Part E: Enthalpy change in Chemical Reactions 5 points
If the enthalpy
change for the combustion of propane
gas, C3H8 (g) is -2220kJ/mol
propane. What quantity of heat is released when 1.00 kg of propane is burned?
C3H8
(g) +
5 O2 (g) à 3 CO2 (g) + 4 H2O
(l) ∆H
= -2220 kJ
Answer:
-50,500 kJ