Physical Properties of Propane

Propane is a nonpolar molecule with a boiling point of -42.1 °C and a melting point of -187.7 °C. It is lighter than air and has a density of 1.88 kg/m³ at 25 °C.

Chemical Properties of Propane

Propane undergoes combustion reactions to produce carbon dioxide and water:

C3H8 + 5O2 → 3CO2 + 4H2O

It can also undergo substitution reactions with halogens, such as chlorination or bromination.

Industrial and Household Uses

Propane is widely used as a fuel for heating and cooking in residential, commercial, and industrial settings. It is also used as a propellant in aerosol cans and as a refrigerant. Additionally, it is used as a feedstock in the production of petrochemicals.

Environmental Impact

While propane is a relatively clean-burning fuel, its combustion does produce carbon dioxide, a greenhouse gas. However, it produces lower levels of carbon monoxide, particulate matter, and nitrogen oxides compared to other fossil fuels.

Study Guide for Propane

1. What is the molecular formula of propane?
2. State the physical properties of propane.
3. Provide the chemical equation for the combustion of propane.
4. List at least three industrial or household uses of propane.
5. Discuss the environmental impact of propane use.

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