coal and petroleum

types of resources

natural resources man-made resources

natural resources definition

resources found in nature

sunlight forests water air

man made resources

resources made by humans

houses electricity vehicles clothes

exhaustible resources

resouces which are limites in quantity and can be exhausted in the near future
coal petroleum

imexhaustable resources

resources which are unlimited in quantity and will not be exhausted in the near future

wind solar energy(sunlight) water

renewable resouces

resources which can be replenished or renewed in a short period of time

non-renewable resources

resources which cannow be renewed easily and may take a long time to replenish
petroleum coal

carbonisation definition

process of converting organic matter into coal(carbon)

conditions required for formation of coal

remains of dead plants and trees high temp high pressure absence of air

destructive distillation of coal

heating of coal to extemely high temps in the absence of air to obtain different components like coke, coal tar, and coal gas

coke

physical state ->solid(tough and porous) composition ->almost pure carbon colour -> black uses-> extraction of metal -> manifacturing steel

coal-tar

physical state -> thick liquid composition -> 200+ mixed compounds colour -> black uses-> making of plastics, dyes, paints, perfumes

coal gas

physical state -> gas composition ->hydrogen, methane, and carbon monoxide colour -> colourless uses-> used as fuel in many industries

formation of petroleum

absense of air high temp high pressure dead remains of aquatic plants/animals

fossil fuel definition

fuels formed from dead remains of organisms(fossils)

refining of petroleum

process of seperating the various constituents of petroleum carried out in a petroleum refinery