prasented by bapling Leamin Grade C Descript Policies: Consider an ideal gas enc

Question

prasented by bapling Leamin Grade C Descript Policies: Consider an ideal gas enclosed in a 1.00 L container at an internal pressure of 12.0 atm Calculate the work, w, if the gas expands against a constant external pressure of 1.00 atm to a final volume of 12.0 L YoU Ca YoU Ca You ha There For mu depeno Number Now calculate the work Step 1: Let the gas expand against a constant external pressure of 3.00 atm to a volume of 4.00 L Step 2: From the end point of step 1, let the gas expand to 12.0 L against a constant external pressure of 1.00 atm done if this process is carried out in two steps eTexth Help Number Web Techn Previous O Check Answer Next Exit Hint

Explanation / Answer

Part a
Work done in gas expansion
w= - P V

= - P (V2-V1)

w = -1.00 atm * (12.0 L - 1.00 L)

= - 11 L*atm x (101.325 J/ L *atm)

= - 1114.575 J

Part b

For the two-step process

w = (-P V) + (-P V)

w = [-3.00 atm * (4.00L - 1.00L)]+[-1.00 atm * (12.0L - 2.00L)]

= - 9 - 10

= - 19.0 L * atm x (101.325 J/ L *atm)

= - 1925.175 J

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