- 7 How Large Must A Heating Duct Be If Air Moving 3 M S Along It Can Replenish The Air In A Room Of 300 M Volume Every 1 (74.31 KiB) Viewed 38 times
7. How large must a heating duct be if air moving 3 m/s along it can replenish the air in a room of 300 m³ volume every
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7. How large must a heating duct be if air moving 3 m/s along it can replenish the air in a room of 300 m³ volume every
7. How large must a heating duct be if air moving 3 m/s along it can replenish the air in a room of 300 m³ volume every 15 min? Assume the air's density remains constant. 8. A gas is enclosed in a container fitted with a piston of cross-sectional area 0.10 m². The pressure of the gas is maintained at 8000 Nm-². When heat is slowly transferred, the piston is pushed up through a distance of 4 cm. If 42 J heat is transferred to the system during the expansion, what is the change in internal energy of the system?