USA: +1-585-535-1023

UK: +44-208-133-5697

AUS: +61-280-07-5697

P – v and T – s Diagrams for Pv = C

Now                            Pv n=C

V n d P + P n v n 1 dv = 0

dp / du = – n p / u

slope = – n p / u

 

Thus slope depends on P and v for a particular n, in negative sense.

Process                                    Value of n                               Equation of process

Isobaric Process                                  n = 0                                        P = Const.

Isothermal Process                             n = 1                                        T = Const.

Isentropic Process                              n = y                                        S = Const.

Isometric or isochoric Process          ·                                    v = Const.

Similarly                     u1 = u2

u2 = u3 and so on

u = constant for n=∞