Coal Assignment NAME: _______________________________

Most coal is sedimentary rock, but the harder forms, such as anthracite, which have been exposed to temperature and pressure, could be considered what type of rock?

What are the principle elements in coal?

What are the three main uses of coal energy?

What is the first step in the process of coal formation?

Coal is the largest source of energy for electricity generation. Why is the market changing from coal to natural gas?

What are the two ways coal is extracted from the ground by coal mining?

Which country is the world’s top coal producer?

Place the following types of coal into the order in which they are formed:

Anthracite, Lignite, Graphite, Peat, Bituminous, Steam Coal

What is Hilt’s Law?

When was the earliest use of coal as a fuel?

How much coal did the world consume in 2010?

How is coal usually used to produce electricity?

What is the maximum thermodynamic efficiency of current steam turbines?

What alternative fuel source is resulting in a reduction of the use of coal for electricity generation in the US?

Coke is a solid carbonaceous residue derived from low-ash, low-sulfur bituminous coal from which the volatile constituents are driven off by baking in an oven without oxygen at temperatures as high as 1,000 °C. What process requires the use of metallurgical coke?

How many premature deaths are caused annually in the US by coal-fired power plants?

How many tons of waste products are produced?

Which type of coal leads to acid rain?

Coal-fired power plants without effective fly ash capture systems are one of the largest sources of human-caused exposure to background ________________________ .

What is the energy density of coal?