//example 2.1: The air pressure and density at a point on the wing of a Boeing 747 are 1.10 * 10^5 N/m^2 and 1.20kg/m^3,respectively.what is temperature at that point? p=1.10*10^5;//given density=1.20;//given R=287;// gas constant.for air(j/kg.k) T=p/((density)*(R))