A rigid tank contains air at a pressure of 90

dedica66em 2021-12-17 Answered
A rigid tank contains air at a pressure of 90 psia and a temperature of 60F . By how much will the pressure increase as the temperature is increased to 110F2
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Jacob Homer
Answered 2021-12-18 Author has 41 answers
Given Information:
P1=90PSITI=60F=(60+459.67)R
P2=????T2=110F=(110+459.67)R
p=ρRT
Since V is constant and mass does not change, density is constant. R is also constant The equation can be simplified to the pressure law.
P2=P1(T2T1)=98.67

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eskalopit
Answered 2021-12-19 Author has 31 answers
p=ρRT (Eq.1.8)
For a riqid closed tank the air mass and olume are constant so p=constant. Thus, from Eq.1.8 (with R constant)
p1T1=p2T2 (1)
where p1=90ψa, T1=60°F+460=520°R,
and T2=110°F+460=570°R From Eq.(1)
p2=T2T1p1=(570°R520°R)(90ψa)=98.7ψa

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