//Diameter of pipe(in m):
D=7.16*10^-3;
//Stagnation pressure(in kPa):
p0=101;
//Stagnation temperature(in K):
T0=296;
//Pressure at section 1(in kPa):
p1=98.5;
//Temperature at section 2(in K):
T2=287;
//Gas constant(in N-m/kg-K):
R=287;
//Value of k:
k=1.4;