a. Combustion → carbon dioxide is produced in the gaseous state, water in the liquid state
Combustion reaction:
C2H5OH(l) + O2(g) → CO2(g) + H2O(l)
Balance C:
C2H5OH(l) + O2(g) → 2 CO2(g) + H2O(l)
Balance H:
C2H5OH(l) + O2(g) → 2 CO2(g) + 3 H2O(l)
Balance O:
C2H5OH(l) + 3 O2(g) → 2 CO2(g) + 3 H2O(l)
Balanced reaction: C2H5OH(l) + 3 O2(g) → 2 CO2(g) + 3 H2O(l)
b.
ΔH°f can be found in books or the internet
a. Write a balanced equation for the combustion of ethanol, C2H5OH(l) in oxygen. Carbon dioxide is produced in the gaseous state, water in the liquid state.
b.The standard heat of combustion of ethanol is -1367 kJ/mol. Calculate the standard heat of formation of ethanol, ΔH.
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