Fuels and Combustion
If the specific heat of gaseous products of combustion of a fuel is high, the abiabatic flame temperature will be

None of these
Very high, if the fuel is of low calorific value
High
Low

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Fuels and Combustion
Presence of free moisture in coal during its high temperature carbonisation

Increases the loss of fine coal dust from the ovens when charging
Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls
None of these
Reduces the coking time

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