Code Thermodynamics btech 3rd semester question to get results , plot graph if needed
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vikram kumar on 2 Dec 2022
A gas filled in a piston cylinder device, expands from 400 kPa and 0.05 m3
to a final volume of 0.2 m3
If the gas stisfies PVn=C, n and C are constants (take n=1.5), calculate the work done by the system.
Now, vary the value of n from 1.1 to 1.7, and plot the work versus polytropic exponent.
VBBV on 2 Jan 2023
Edited: VBBV on 2 Jan 2023
p = 400*1e3;
v1 = 0.05;
v2 = 0.2;
n = 1.1:0.01:1.7;
W = (n./(n-1))*p*(v2-v1)
plot(n,W); xlabel('polytropic exponent [n]');ylabel('Work done')
W = @(n,p) (n./(n-1)).*p.*(v2-v1)
fsurf(W,[1.1 1.7 100*1e3 400*1e3])
axis square; zlabel('Work done')
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