A 1.85-m3 rigid tank initially contains air whose density is 1.18 kg/m3. The tank is connected to a high-pressure supply line through a valve. The valve is opened, and air is allowed to enter the tank until the density in the tank rises to 5.30 kg/m3. Determine the mass of air that has entered the tank.

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DeniceSandidge DeniceSandidge · Answer 1 · 2020-03-26T10:17:45+01:00

Answer:

we can conclude that mass of air that has entered the tank is 7.80 kg.

Explanation:

given data

volume = 1.85 m³

density 1 = 1.18 kg/m³

density 2 = 5.30 kg/m³

solution

we know that density is the mass present in per unit volume so that is

mass = density × volume ........................1

here density is change so put here value in equation 1 we get

mass = ( 5.30 - 1.18 ) kg/m³ × 1.85 m³

solve it we get

mass = 7.807 kg

so we can conclude that mass of air that has entered the tank is 7.80 kg.

Vespertilio Vespertilio · Answer 2 · 2020-03-27T06:07:08+01:00

Answer:

7.622 kg

Explanation:

Volume, V = 1.85 m³

initial density of air, d = 1.18 kg/m³

final density of air, d' = 5.3 kg/m³

initial mass of air, m = volume x initial density

m = 1.85 x 1.18 = 2.183 kg

final mass, m' = volume x final density

m' = 1.85 x 5.3 = 9.805 kg

mass of air entered, m' - m = 9.805 - 2.183 = 7.622 kg

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