Question

TB4 The quasi-static ideal gas cycle shown to the right has three legs, an adiabatic leg #1 from (PyVị) to (P-1 atm, V3), followed by an isobaric compression leg #2 from (P-1 atm, V3) to (P -1 atm,Vi), and ending with a constant volume pressurization leg #3 from (P-1 atm, VI) back to the initial state to complete the cycle. There are n moles of gas. What happens to the internal energy ( Ein) during leg #2 of this process? Hint: Label the legs #1, #2, and #3 in the diagram for more clarity. Adiabatic V V, L TB4 The quasi-static gas cycle for n moles of an ideal monatomicP. atm gas, as shown to the right, has three legs, an adiabatic leg #1 from (P2,Vi) to (P-1 atm, V3), followed by an isobaric compression leg #2 from (P-1 atm,V3) to (P-1 atm, И), and ending with a constant volume pressurization leg #3 from (ΡΞ I atm, VI) back to the initial state to complete the cycle. What happens to the internal energy (Eint ) during leg #1 of this process? Hint: Label the legs #1, #2, and #3 in the diagram for more clarity. Adiabatic TB4 The quasi-static gas cycle for n moles of an ideal monatomicP. atm gas, as shown to the right, has three legs, an adiabatic leg #1 from (P2,Vi) to (P-1 atm, V3), followed by an isobaric compression leg #2 from (P-1 atm, V3) to (P-1 atm, VI), and ending with a constant volume pressurization leg #3 from (P-1 atm, VI) back to the initial state to complete the cycle. What happens to the internal energy ( Eint ) during leg #3 of this process? Hint: Label the legs #1, #2, and #3 in the diagram for more clarity. Adiabatic

Answer 1

Change in Internal Energy = f/2 nR ∆T

3/2 nR (P1V3 - P1V1) /nR

= 3/2 P1 ( V3-V1)