Science, asked by mahiharshita789, 8 months ago

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Answered by smartboy9949
0

Answer:

1) Coal is seemingly the cheapest and most essential source of energy. Here is a list of all the major uses of coal.

Thermal coal is used to produce electricity.

Coking coal is used in the production of steel.

Coal is also used to make silicon metal which is used to produce silicones and silanes, which are in turn used to make lubricants, water repellents, resins, cosmetics, hair shampoos, and toothpaste.

Activated charcoal is used to make face packs and cosmetics.

Carbon fibre is made from coal. Carbon fibre is an extremely strong but lightweight reinforcement material used in construction, mountain bikes, and tennis rackets.

Activated carbon is used in filters for water and air purification and in kidney dialysis machines. Coal is used to make activated carbon.

Paper manufacturers use coal to make paper.

Coal helps to create alumina refineries.

Thousands of different products have coal or coal by-products as components: soap, aspirins, solvents, dyes, plastics,and fibres, such as rayon and nylon.

2) Coal is a natural occurring substance whereas Coke prepared material with few impurities and high Carbon content, usually made from Coal. 2. Coal has a Volatile matter content whereas Coke has relatively very low Volatile matter content which suits it for a better fuel.

3) Over millions of years, heat and pressure from Earth's crust decomposed these organisms into one of the three main kinds of fuel: oil (also called petroleum), natural gas, or coal. These fuels are called fossil fuels, since they are formed from the remains of dead animals and plants.

4) Petroleum refining processes are the chemical engineering processes and other facilities used in petroleum refineries (also referred to as oil refineries) to transform crude oil into useful products such as liquefied petroleum gas (LPG), gasoline or petrol, kerosene, jet fuel, diesel oil and fuel oils.

5) Driving at the acceptable speed limit is safer and increases the fuel economy. As for highway driving, over 50% of the power produced by the engine is used to overcome aerodynamic drag. For this reason, fuel consumption increases rapidly at speeds above 90km/h. ... Driving at a moderate speed increases the fuel efficiency.

I have given the answers of all the questions

if you have any doubt or query you can ask in comments...... you can also search for the answers in Google and YouTube for better explanation......

hope it helps

Answered by RoBloXnOoB
1

Answer:

1. The uses of coal are - electricity generation, steel production, cement manufacturing and as a liquid fuel.

2.Coal is a natural occurring substance whereas Coke prepared material with few impurities and high Carbon content, usually made from Coal. 2.

3.Over millions of years, heat and pressure from Earth's crust decomposed these organisms into one of the three main kinds of fuel: oil (also called petroleum), natural gas, or coal. These fuels are called fossil fuels, since they are formed from the remains of dead animals and plants.

4. Petroleum refining processes are the chemical engineering processes and other facilities used in petroleum refineries (also referred to as oil refineries) to transform crude oil into useful products such as liquefied petroleum gas (LPG), gasoline or petrol, kerosene, jet fuel, diesel oil and fuel oils.

5.Driving at the acceptable speed limit is safer and increases the fuel economy. As for highway driving, over 50% of the power produced by the engine is used to overcome aerodynamic drag.

Hope these answers helped with your questions <3

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