A tank used for compressed gas contains #9750mol# oxygen gas, in a volume of #9750L#, at a temperature of #34.9# #""^@C#...?

Question

What is the pressure inside the tank in #"pounds per square inch"#?

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Answer 1 · 2017-05-19T05:01:53

Well, first we use standard units and get, #P=149.4*atm#, and then convert this into #"psi"#.

#P=(nRT)/V=(9750*molxx0.0821*(L*atm)/(K*mol)xx308*K)/(1650*L)#

#=149.4*atm#

And then we convert this to #"psi"#; #1*atm-=14.6*"psi"#.

And so #P=149.4*atmxx14.6*"psi"*atm^-1# #=#

#"Approx........2000 psi"#. Note that this is on the VERY high end for oxygen tanks for medical use. Why would you NOT such a tank for scuba diving?