This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: Chapter 4 Summary One of your classmates was ill last week, so I thought I would send out this summary of the Chapter 4 lecture to everyone. He asked for any Powerpoint Presentations. Since I just used the board, I created this summary, focusing on the W OUT in a closed system Q IN W OUT = E = U + KE + PE. If velocity and elevation are not an issue, Q IN W OUT = U Further focusing on W OUT = 1) If the system stays at constant volume dV = 0 so W OUT = 0 2) If the system stays at constant Pressure, becomes P *(V 2 V 1 ) which is the area under the curve on a PV diagram 3) If the system stays at constant temperature and the gas behaves ideally, = R*T * = R*T *ln(V 2 /V 1 ), because P*V = R*T and P = R*T /V. Again, the area under the curve on a Pv diagram . 4) If the system behaves polytropically, P 1 *V 1 n = P 2 *V 2 n = constant = C. n defines the shape of the parabola between states 1 and 2 and is a function of the gas behavior, which will be defined shortly. parabola between states 1 and 2 and is a function of the gas behavior, which will be defined shortly....
View
Full
Document
This note was uploaded on 06/20/2009 for the course THERMO n/a taught by Professor N/a during the Spring '09 term at Abraham Baldwin Agricultural College.
 Spring '09
 n/a

Click to edit the document details