Question 2 of 14 Incorrect sapling learning Map The figure below is a pressure v

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Question 2 of 14 Incorrect sapling learning Map The figure below is a pressure versus volume graph where the different curves represent different processes done on a gas. Starting at the origin to point 1, the pressure and volume are increased to 2795 Pa and 4.42 m3 respectively. From 1 to 2 the gas expands at constant pressure to a volume of 7.42 m3. From 2 to 3 the pressure rises to 4574 Pa. And finally from 3 to 4 the gas expands again to 11.02 m3. Using the ranking module, rank the curves from the most positive to the most negative amount of work done on the gas. Most Positive Work 0-1 2-3 1-2 3-4 Most Negative Work What is the total work done on the gas? FPa) V (cubicnm Number Incorrect. W.437205.3 Previous Give Up & View Solution Try Again O Next H Exit Explanation

Explanation / Answer

work done by gas = area under P-V curve

0->1)

0.5*2795*4.42 =6176.95 J (on gas = -6176.95 J)

1->2

2795*(7.42-4.42) = 8385 J (on gas = -8385)

2-3

0 work

3-4

4574*(11.02-7.42)

16466.4 J (On gas = -16466.4)

order of work done on gas

2-3

0-1

1-2

3-4

total work done on gas = -16466.4 -8385  -6176.95 +0 = -31028.35 J

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