PV Diagrams

1. Jan 9, 2009

ApexStudent1

Draw the path in the pV diagram for an isobaric expansion from a volume of 2 m^3 to 5 m^3.

Idk which of these equations are needed cuz they all are given with this section...
ΔU=Q-W
ΔU=Q+W
W=PΔV
ΔU=Q
W=nRTln(Vf/Vi)
Q-W
ΔU=-W
ΔU=+W
e=W/Qh=1-Qc/Qh
e=1-Tc/Th
ΔS=Q/T

My attempt...

Graph with x being Volume and y being Pressure, a horizontal line from 2-5

2. Jan 9, 2009

Thaakisfox

An isobaric expansion means that the pressure is kept constant during the expansion. This means that when you graph the expansion on the pV diagram, you will have a line parallel to the V axis.
So what you did was right...