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+clc

+clear

+printf("Example 4.4 | Page number 103 \n\n");

+//find Cv and Cp

+//Given data

+t = poly(0,'t'); //°C //Temperature in °C

+u = 196 + .718*t; //KJ/kg //specific internal energy

+pv = 287*(t+273); //Nm/kg //p is pressure and v = specific volume

+

+//Solution

+Cv = coeff(derivat(u));

+printf("Specific heat at constant volume,Cv = %.3f kJ/kgK\n",Cv(1)); 

+

+h = u + pv*.001 //KJ/kg //enthalpy

+Cp = coeff(derivat(h));

+printf("Specific heat at constant pressure,Cp = %.3f kJ/kgK",Cp(1));