Question: What is an example of a secondary energy source apes?

Which is an example of a secondary energy source apes?

nuclear. Which is an example of a secondary energy source? the use of two or more energy sources to generate electricity. the use of two separate turbines to generate electricity.

What type of coal has the highest energy density apes?

Anthracite is the hardest and contains the most carbon per pound. Anthracite is followed by bituminous and subbituminous coal. Lignite, a soft coal, has the lowest amount of carbon per pound. The energy content of coal is approximately related to its carbon content.

What form of coal has the highest energy content quizlet?

-anthracite, highest rank of coal, the most efficient out of any other coal, and has the highest carbon content.

What are the two energy sources that do not originate from the sun?

As is obvious upon reflection, the Sun powers the Earth. The only major energy source that is not solar-based is nuclear power: energy from the atomic decay of unstable, heavy elements buried in the ground billions of years ago when our planet was formed.

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Which type of coal has the highest energy?

Anthracite contains 86%–97% carbon and generally has the highest heating value of all ranks of coal.

What is the major source of energy in the US?

Natural gas was the largest source—about 40%—of U.S. electricity generation in 2020. Natural gas is used in steam turbines and gas turbines to generate electricity. Coal was the third-largest energy source for U.S. electricity generation in 2020—about 19%. Nearly all coal-fired power plants use steam turbines.

What is the difference between bituminous and anthracite coal?

Explanation: Anthracite coal is a higher grade than bituminous coal and is formed under greater pressure and at higher temperatures. Anthracite coal contains more carbon than bituminous coal and less sulfur, making it more desirable. Bituminous coal also contains more moisture than anthracite coal.

What does bituminous coal mean?

bituminous coal, also called soft coal, the most abundant form of coal, intermediate in rank between subbituminous coal and anthracite according to the coal classification used in the United States and Canada. … Bituminous coal is dark brown to black in colour and commonly banded, or layered.

Is anthracite hard coal?

Anthracite: The highest rank of coal. It is a hard, brittle, and black lustrous coal, often referred to as hard coal, containing a high percentage of fixed carbon and a low percentage of volatile matter.

Why does anthracite coal have the highest density?

It has the highest carbon content, the fewest impurities, and the highest energy density of all types of coal and is the highest ranking of coals. Anthracite is the most metamorphosed type of coal (but still represents low-grade metamorphism), in which the carbon content is between 86% and 97%.

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What does natural gas do?

Natural gas is a non-renewable hydrocarbon used as a source of energy for heating, cooking, and electricity generation. It is also used as a fuel for vehicles and as a chemical feedstock in the manufacture of plastics and other commercially important organic chemicals.

Why is coal the best source of energy?

It is by far cheaper than nuclear, natural gas, oil. … Coal also provides a stable source of energy (no Arab oil embargoes, no sudden scarcity like you experience with natural gas) and there is a very plentiful supply both in the U.S. and in other foreign countries.

What does it mean to say that electricity is a secondary energy source?

Electricity is a secondary energy source

The electricity that we use is a secondary energy source because it is produced by converting primary sources of energy such as coal, natural gas, nuclear energy, solar energy, and wind energy, into electrical power.

What are two energy sources?

There are two sources of energy: renewable and nonrenewable energy.

What are renewable energy sources give two examples?

Renewable resources include solar energy, wind, falling water, the heat of the earth (geothermal), plant materials (biomass), waves, ocean currents, temperature differences in the oceans and the energy of the tides.