What is the reaction for the combustion of propane?

The balanced chemical equation for the combustion of propane is: C3H8(g)+5O2(g)→3CO2(g)+4H2O(g).

What are the products of combustion of propane?

Complete combustion of propane results in the formation of carbon dioxide and water vapour. Carbon monoxide is a by-product of combustion when there is not enough oxygen to burn the propane completely.

How do you calculate the heat of combustion of propane?

The heat of combustion of propane, C3H8, as described in the equation C3H8(g) + 5O2(g) → 3CO2(g) + 4H2O(l), is –2220 kJ mol-1 and the heats of formation of carbon dioxide gas and water liquid are –393.5 kJ mol-1 and -285.8 kJ mol-1 respectively.

What is the combustion of propane used for?

Propane is a flammable hydrocarbon gas that is liquefied through pressurisation and commonly used for fuel in heating, cooking, hot water and vehicles. Propane can also be used for refrigerants, aerosol propellants and petrochemical feedstock.

Why is smoke produced when propane is burned?

Smoke is produced when propene is burned in air due to incomplete combustion. Incomplete combustion takes place because the percentage of carbon in…

What is the maximum percentage of propane in air that would still support combustion?

Any percentage of propane in a propane/air mixture between 2.15% and 9.6% will be sufficient for propane to burn. However, an improper air/gas mixture can produce Carbon Monoxide (CO) that is a deadly product of incomplete combustion.

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Is heat of combustion always negative?

The definition of combustion reactions as reactions that release heat tells us that the enthalpy change of the system, ΔH , will always be negative. This is because enthalpy is the total heat content of a system. Since heat is released for combustion reactions, the total heat content must decrease.

Is heat of formation same as heat of combustion?

They are not opposites. The heat of combustion is just the enthalpy of reaction for any combustion reaction. To find the enthalpy of any reaction, you look up enthalpies of formation and do products minus reactants.

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