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+//example 3.3
+
+clear;
+clc;
+
+//given:
+H=29.2;//latent heat of vaporisation[KJ/mol]
+T=332;//temperature of the system[K]
+R=8.314;//universal gas constant [J/K/mol]
+
+
+//to find Q,W,U for 1 mole of bromine vaporizes
+//where Q is heat absorbed or evolved
+//W is the work done by system
+//U is the change in internak energy
+Qp=H;//at constant pressure [KJ]
+W=-R*0.001*T;//workdone [KJ]
+U=Qp+W;//change in internal energy[KJ]
+printf("heat absorbed by the bromine vapours is %f KJ",Qp);
+printf("\nworkdone during the process is %f KJ",W);
+printf("\nchange in internal energy of the system is %f KJ",U);