A 28 m chimney is full of hot gases at temperature 300 C. The air supplied for complete combustion of 1 kg of coal is 18 kg. calculate draught in N/m2 if the temperature of outside air is 25 C.

A 28 m chimney is full of hot gases at temperature 300 C. The air supp

1.	A 28 m chimney is full of hot gases at temperature 300 C. The air supplied for complete combustion of 1 kg of coal is 18 kg. calculate draught in N/m² if the temperature of outside air is 25 C.
A.	140.32 N/m<sup>2</sup>
B.	187.54 N/m<sup>2</sup>
C.	150.32 N/m<sup>2</sup>
D.	146.76 N/m<sup>2</sup>
Answer» E.

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A 28 m chimney is full of hot gases at temperature 300 C. The air supplied for complete combustion of 1 kg of coal is 18 kg. calculate draught in N/m2 if the temperature of outside air is 25 C.

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A 28 m chimney is full of hot gases at temperature 300 C. The air supplied for complete combustion of 1 kg of coal is 18 kg. calculate draught in N/m² if the temperature of outside air is 25 C.