about 2 tons per year
And wher does it go...
There is no difference. Graphite is the highest grade of coal. It requires a much higher temperatre to burn though so it isn't used as a fuel.
Coal is very light even though it is rock. Coal consists largely of carbon formed from decomposed vegetation much like oil and tar. It burns because it is like oil or tar but in rock formation.
From <28470 kJ/kg to about 35380 kJ/kg, depending on the kind of coal and how efficiently it is burned. The figures assume 100% efficiency, which is never reached.
Coal dust in the air is an explosive mixture, because the mixture of coal and air can burn much more rapidly than solid pieces of coal can (flour in the air is also explosive, or sawdust - any flammable substance in the form of dust becomes explosive if it is mixed into the air). The process of mining coal is messy, and creates a lot of dust. And any spark can set it off. No smoking in the coal mines!
the average bag of coal cost about $10.99 in the year of 2011
It used 620 tons.
And wher does it go...
Coal is not renewable within our life times. Much of the coal we burn today formed during the Permian, some 300 million years ago.
$34,268
The key to a hot fire is not how much you burn, but WHAT you burn. Coal makes some of the hottest fires. A slower-burning fuel like diesel or kerosene will also help. Try to pack the material to be burned as much as possible; the reason coal is effective is because it is a very dense collection of carbon.
About 110 tons
There is no difference. Graphite is the highest grade of coal. It requires a much higher temperatre to burn though so it isn't used as a fuel.
The Titanic had 159 coal-burning furnaces fueling the boilers.
you're stupid and my friends agree
Depends on the amount of electrical energy they (need to) generate. How much does the average nuclear plant generate ? How much does the average coal plant generate ?
An average household uses around 920 kWh/mo. If they got all their electricity from burning coal, that's 2070 to 791 pounds of coal per month. Source: michaelbluejay.com