Question

How many moles of Oxygen (O2) gas can be stored in a standard gas cylinder at a temperature of 20.0o C and a pressure of 15200 kPa? The volume of a standard gas cylinder is 47 Liters

Answer 1

Answer: Thus 293 moles of Oxygen gas can be stored in a standard gas cylinder at a temperature of
`20.0^0C` and a pressure of 15200 kPa

Step-by-step explanation:

According to ideal gas equation:

`PV=nRT`

P = pressure of gas = 15200 kPa =150 atm (1kPa=0.0098atm)

V = Volume of gas = 47 L

n = number of moles = ?

R = gas constant =
`0.0821Latm/Kmol`

T =temperature =
`20.0^0C=(20.0+273)K=293.0K`

`n=(PV)/(RT)`

`n=(150atm* 47L)/(0.0821L atm/K mol* 293.0K)=293moles`

Thus 293 moles of Oxygen gas can be stored in a standard gas cylinder at a temperature of
`20.0^0C` and a pressure of 15200 kPa