Preliminary Chemistry Combustion Quiz

Nitrogen oxides produced during combustion react in the atmosphere to form both acid rain and ground-level ozone, which is a major component of smog.

Combustion of hydrocarbons releases carbon dioxide, which is a greenhouse gas that contributes to global warming and rising sea levels. It does not reduce atmospheric carbon dioxide.

Fractional distillation is the process used to separate components of crude oil based on their different boiling points.

Diesel is a liquid fuel derived from crude oil, commonly used in internal combustion engines.

A yellow, luminous flame indicates incomplete combustion, which occurs when there is insufficient oxygen to fully oxidize the fuel, leading to the production of soot.

Incomplete combustion of hydrocarbons occurs when oxygen is limited, resulting in the production of carbon monoxide and carbon (soot) instead of just carbon dioxide and water.

Fanning a fire introduces a fresh flow of air, which supplies more oxygen to fuel the combustion reaction, causing the fire to burn brighter and grow larger.

Solid fuels like wood or coal are generally safer to store because they are stable and do not easily leak or vaporize, unlike liquid or gaseous fuels which require specialized containers and safety measures.

Combustion reactions are exothermic, meaning they release energy as heat and light. They are not endothermic, which would require the absorption of energy.

Coal is a fossil fuel that exists in a solid state at room temperature.