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+// Example 2// Ch 3
+clc;
+clear;
+close;
+// given data
+R=8314; // gas constant in J/kg.mol.K
+T=298;//in kelvin 
+M=32; // oxygen is diatomic
+m=2*10^-3; // in kg
+p=1.01*10^5; // 1 atm=1.01*10^5 N/m2
+G = (m*R*T)/(M*p);//volume of gas
+
+x=(3/2)*p;//no. of molecules per unit volume where x=N*0.5*m*v^2 is given as (3/2)*p)
+printf("volume of gas %e m^3 \n",G)
+KE = x*G;//total translational kinetic energy
+printf("total translational kinetic energy is %f J \n",KE) 
+// Note: Value of G is calculated in book is wrong