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+// Implementation of example 1.1
+// Basic and Applied Thermodynamics by P.K.Nag
+// page 20
+clc
+clear
+
+z=562 // (difference in height of mercury in two limbs in mm)
+g=9.79 // (acceleration due to gravity in m/s^2)
+z0=761 // (barometer reading in mm Hg)
+d=13640 // (density of mercury in kg/m^3)
+
+// p= p0 + (d*g*z) & p0=(d*g*z)so
+p=(d*g)*(z+z0)/1000; // division by 1000 is done to convert mm to m
+p=(p/100000); // here division by 100000 is done to convert kPa to atm
+printf("The gas pressure = %.2f bar",p);
+// end
+\ No newline at end of file