A gas cylinder contains 370 g oxygen gas at 30 atm pressure and 25°C. What mass of oxygen would escape if first the cylinder were heated to 75°C and then the valve were held open until gas pressure was 1 atm, the temperature beingmaintained at 75°C?

A gas cylinder contains 370 g oxygen gas at 30 atm pressure and 25°

1.	A gas cylinder contains 370 g oxygen gas at 30 atm pressure and 25°C. What mass of oxygen would escape if first the cylinder were heated to 75°C and then the valve were held open until gas pressure was 1 atm, the temperature beingmaintained at 75°C?
Answer» 359.3 gExplanation:Volume is FOUND from initial condition.n = ( 370 ) ( 1 ) / 32 moln = 11.56 molUsing IDEAL gas equation : P V = n R T V = n R T / PV = ( 11.56 × 0.0821 × 298 ) / 30V = 9.43 LNow final number of MOLES : n = P V / R T n = ( 1 × 9.43 ) / ( 0.0821 × 348 ) n = 0.330 molMass of oxygen left : = > ( 0.330 × 32 ) = > 10.6 gMass of oxygen escaped : = > Initial MASS - Final mass= > 370 - 10.6 g= > 359.4 gTherefore , mass of oxygen escape is 359.3 g