# 12. 1 mole of an ideal gas undergoes an isothermal expansion from V1 = 1.4L followed...

###### Question:

12. 1 mole of an ideal gas undergoes an isothermal expansion from V1 = 1.4L followed by isobaric compression, p = cst.if P1 = 4.4atm, p2 = 1.7atm → ?- m calculate the work done by gas during the expansion. Express work in J = N·m! • For isothermal processes, AT = 0 T = cst → w=faw=fr&v=/MRT AV 594 Show your work like: `x-int_0^5 v(t)dt rarr x-int_0^5(-4*t)dt=-50 m 13. 1 mole of an ideal gas undergoes an isothermal expansion from V1 = 1.7L followed by isobaric compression, p = cst.if P1 = 3.2 atm, P2 = 1.4atm, calculate N the total work done by gas during the compression → ? m2 • The total work done by the gas is the sum of the works done for the two processes, isothermal and isobaric. For isothermal processes, AT = 0+1 = cst → Hint: W= = aw = [ pav V= / "RT AV Hint 1: Constant Pressure Process Hint 2: Constant Volume Process Hint 3: Isothermal Process Hint 4: Adiabatic Process Hint 5: Heat Engine Cycle Hint 6: Heat Engine Cycle

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