a 10L gas cylinder filled with oxygen at 175 atm absolute is used to supply oxyg

Question

a 10L gas cylinder filled with oxygen at 175 atm absolute is used to supply oxygen to an oxygen tent. The cylinder can be used until its absolute temperature drops to 1.1 atm. Assuming a constant temperature of 27C, calculate the number of moles of gas that can be obtained from the cylinder using the corresponding state of law. R=8.314J/mol*K ... Tc=154.4K ... Pr=49.7atm a 10L gas cylinder filled with oxygen at 175 atm absolute is used to supply oxygen to an oxygen tent. The cylinder can be used until its absolute temperature drops to 1.1 atm. Assuming a constant temperature of 27C, calculate the number of moles of gas that can be obtained from the cylinder using the corresponding state of law. R=8.314J/mol*K ... Tc=154.4K ... Pr=49.7atm a 10L gas cylinder filled with oxygen at 175 atm absolute is used to supply oxygen to an oxygen tent. The cylinder can be used until its absolute temperature drops to 1.1 atm. Assuming a constant temperature of 27C, calculate the number of moles of gas that can be obtained from the cylinder using the corresponding state of law. R=8.314J/mol*K ... Tc=154.4K ... Pr=49.7atm

Explanation / Answer

volume = 10 L

initial pressure = 175 atm

final pressure = 1.1 atm

P1 V1 = P2 V2

175 x 10 = 1.1 x V2

V2 = 1590.9 L

volume of gas = 1590.9 L

P V = n R T

1.1 x 1590.9 = n x 0.0821 x 300

n = 71.05

moles of gas = 71 .05

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