initial commit / add all books

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+clear;
+clc;
+disp('Example 1.4');
+
+
+
+//  Given values
+P1 = 100;  //  initial pressure, [kN/m^2]
+V1 = .056;  //  initial volume,  [m^3]
+V2 = .007;  //  final volume,  [m^3]
+
+//  To know  P2
+//  since process is hyperbolic so, PV=constant
+//  hence
+
+P2 = P1*V1/V2;  //  final pressure, [kN/m^2]
+
+mprintf('\n  The final pressure is  =  %f  kN/m^2\n',P2);
+
+// calculation of workdone
+
+W = P1*V1*log(V2/V1); //  formula for work done in this process, [kJ]
+
+mprintf('\n  Work done on the gas is  =  %f  kJ\n',W);
+
+//End