Question

0.15 mol of argon gas is admitted to an evacuated 60 cm3 container at 30 ∘C. The gas then undergoes an isothermal expansion to a volume of 100 cm3 . What is the final pressure of the gas?

Answer 1

Hello Dear,

argon gas had, gas, gas, vf 100 cm3 Given, initially the N=0, 15 mol volume of the container, " = 60 cm3 Temperature of the Ti 30'c =303 K final volume of lim for an isothermal expansion, the temperature remains constant, so from gas equation, PV=nRT T = constant, so PV . p. v = Pf Vf Pivi = nRTi. Vi > final pressure Pf Vf vi Vg > Pf MRTi 0.15 X 8.314 x 303 = 3.78X106 Pascal 100 x 10-6 as Constant - = - Vf
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