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Flashcards in P-V diagrams Deck (10)
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1

area under line

work done

2

arrows

show direction the change is happening in 

3

isotherm

p-V curve for an isothermal process

 

 

4

what is the differnece between the p-V graph for isothermal expansion and compression

direction of arrow

5

how the curve change at different temperature

  • higher temp, further the orgin the isotherm will be 

 

6

what is the difference between p-V diagrams for adiabatic processes and isotherms?

  • steeper gradient
  • gas does less work if it expands adiabatically instead of isothermally
  • the area under the adiabatic curve is larger than the area under the isothermal curve so more work is done to compress gas adiabatically than isothermally

 

 

7

constant volume p-V graph

  • straight verticla line
  • no work done
  • caused by change in temperature

 

8

constant pressure p-V diagramss

  • horizontal straight line
  • work done is rectangle under graph
  • w = pΔV

 

 

9

cyclic process

  • creat loop ona p-V diagram
  • start at certain pressyure and return to the at end of a cycle

 

 

10

net work done of cyclic process

  • difference between the work done by a system and the work done to the system
  • this equals area under the loop
  • work done per cycle = area of loop