Enthalpies of reaction, training solved exercises 01
Thermochemistry Reactions, 2nd Year of High School, Solved Exercises http://goo.gl/4qkOhF
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Endothermic and Exothermic Reactions, Enthalpies of Formation
Hess's Law, Heats of Combustion
Problems with step-by-step solutions, from scratch, tutorials,
Chemistry, 1st and 2nd Year of High School, High School, Selectivity, Entrance Exams 25, PAU
We need to know that the enthalpy changes of formation of elements in their fundamental (natural) state are zero, and those of diatomic compounds are also zero.
The standard enthalpies of formation of CH4 (g), CO2 (g), and H2O (l) are, respectively, -74.9 KJ/mol; -393.5 KJ/mol and -285.8 KJ/mol. Calculate the standard enthalpy of combustion of methane.