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analytical chemistry

10 Terms

1

What is coal?

Coal is a readily combustible rock containing more than 50 percent organic matter (carbon) by weight and 70 percent carbonaceous material by volume.

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2

How is coal formed?

Coal is formed from the physical and chemical alteration of peat, which accumulates in wetlands and undergoes peatification.

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3

What are the types of coal based on coalification?

The types of coal are classified into Anthracite, Bituminous, Subbituminous, and Lignite.

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4

What constitutes the carbon cycle involving coal?

Coal and the peat it comes from are part of the carbon cycle involving processes such as photosynthesis, decay, and respiration.

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5

What are the organic components found in coal?

Coal contains organic components such as plant parts including roots, bark, stems, spores, and leaves.

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6

What is the primary use of coal in the Philippines?

Coal is the main source of electricity in the Philippines.

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7

What is the ash yield in coal analysis?

Ash yield measures how much material remains after coal combustion and indicates the amount of ash residue.

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8

What does proximate analysis measure in coal?

Proximate analysis measures moisture content, volatile matter, fixed carbon, and ash in coal.

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9

What is the calorific value of coal?

Calorific value is a measure of the amount of energy produced from coal when combusted in oxygen.

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10

What does ultimate analysis measure in coal?

Ultimate analysis measures the weight percent of carbon, hydrogen, nitrogen, sulfur, and ash in the coal.

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