I got stuck during a question, and I am starting to panic coz i feel left for too late to get cracking on the books - worked most question, but this has me puzzled.
C = celcius
m3 = metre cubed
A certain gas for which (gamma) = 1.26 and the molar mass is 26kg/kmol, expands reversibly from 727C, 0.003m3 to 2C, 0.6m3, according to a linear law on the T-s diagram. Calculate the work done per kg of gas and sketch the process on a T-s diagram.
Now.. W = integration (p) dV
now I guess the equations for p must derived from "a linear law on the T-s diagram"
So Ts = c?
I don't know I get stuck, somehow I am guessing pV = mRT comes into play.
R = Universal R / Molar mass
gamma = Cp/Cv....
I donno, I really can't see it yet... Please someone help me