Fuels and Combustion
The maximum adiabatic flame temperature in air as compared to that in pure oxygen is

Much higher
Same
Either lower or higher, depends on the type of fuel
Much lower

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Fuels and Combustion
Anthracite coal

Ignites more easily than bituminous coal
Contains more volatile matter than bituminous coal
Burns with short, bluish, yellow-tipped flame producing very little smoke
Is essentially a coking coal

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