Compress air vessel has a volume of 10 ft3 .Cooling coils holds

[walisyh]

Homework Statement

Compress air vessel has a volume of 10 ft3 .Cooling coils holds its temperature at 68F. The pressure now in the vessel is 100 psi. Air is flowing in at the rate of 10 lbm/hr.How fast is the pressure increasing?

The Attempt at a Solution

What I have done is that I have converted mass flow rate into molar flow rate and by using ideal gas equation i found the pressure which has the unit of psi/hr...

 

[walisyh]

please reply

 

[lewando]

So what did you get? Please show the steps you took.