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a] Air density is 1.2kgi'm3 at 20%. Assuming the air is a perfect gas and the ambient atmospheric pressure is constant of 1atm, calculate the...

Dear


I have two questions I need your help with it .. could you please advice me?


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a] Air density is 1.2kgi'm3 at 20%. Assuming the air is a perfect gas and the
ambient atmospheric pressure is constant of 1atm, calculate the clensityr cf air
at 12IDDDC.

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b] Find the mass homing rate #1 of liquid fuel in a pool fire Igfsimi] if the
combustion efficiency is 60% and the pool is of circular shape with diameter
125cm. The heat of combustion H: of the liquid fuel in the pool is 3.5 MJfkg.
A 130cm flame is produced. Assuming 111e density of the fuel is QDDkgfm3,
what is the regression rate of the pool fire {use mmi's}?

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