We1 then see the necessity of supplying fuel in a state of combustion, especially when' fresh coal is put on the fire with a plentiful supply of oxygen. As the atmosphere is composed of 21 volumes ...

All combustion reactions (such as the burning of coal) are exothermic. Incredibly, the reaction between iron and moist air that produces rust is a very exothermic process and generates lots of heat.

The fuels (wood and coal) employed to produce artificial heat, require exposure to a high temperature before they will burn, hence they are not subject to spontaneous combustion; that is ...

Can you imagine a world without me? I cook your food, warm your homes, illuminate your living spaces, shape metals, support hunting ...