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?