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+//Calculate the Most probable speed ,Mean speed and Root mean square speed for Oxygen molecule
+
+//Example 3.1
+
+clc;
+
+clear;
+
+R=8.314;   //Gas constant in J K^-1 mol^-1
+
+T=300;  //Temperature in kelvin
+
+mew=0.03200;  //Molar mass of Oxygen kg mol^-1
+
+Cmp=sqrt((2*R*T)/(mew))//Most probable speed in m s^-1
+
+printf("most probable speed = %.0f m s^-1",Cmp);
+
+Cbar=sqrt((8*R*T)/(%pi*mew)); //Mean speed in m s^-1
+
+printf("\nMean speed = %.0f m s^-1",Cbar);
+
+Crms=sqrt((3*R*T)/(mew)); //Root mean square speed in m s^-1
+
+printf("\nroot mean square speed = %.0f m s^-1",Crms);