Dry flue gases with a composition of \[C{{O}_{2}}=10.4%,\]\[{{O}_{2}}=9.6\] and \[{{N}_{2}}=80%,\] indicate that:

Hydrogen is not present in the coal

Dry flue gases with a composition of \[C{{O}_{2}}=10.4%,\]\[{{O}_{2}}=

1.	Dry flue gases with a composition of \[C{{O}_{2}}=10.4%,\]\[{{O}_{2}}=9.6\] and \[{{N}_{2}}=80%,\] indicate that:
A.	Excess air is used
B.	Air is insufficient
C.	Hydrogen is not present in the coal
D.	Air is just sufficient
Answer» D. Air is just sufficient

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Dry flue gases with a composition of \[C{{O}_{2}}=10.4%,\]\[{{O}_{2}}=9.6\] and \[{{N}_{2}}=80%,\] indicate that:

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