A2.5-m3 tank contains air at 240 °c and 175 kpa. the air is then heated under constant pressure conditions to a final temperature of 400 °c. calculate the final volume and the mass of the air inside the tank.

m= 2.97 Kg

V₂= 3.28 m³

Explanation:

V₁=2.5 m³         P₁= 175 kPa    T₁=240 ⁰C  = 240+273= 513 K

R=0.287 (characteristic gas constant)

according to ideal gas equation

P₁V₁=mRT₁

m= 2.97 Kg

T₂=400 °C= 400+273 = 673 K     P₁=P₂= 175 kPa

P₂V₂=mRT₂

V₂= 3.28 m³

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