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//Calculate the pressure of gas if Nitrogen behaves as a Van der Waals and ideal gas
// Example 2.3
clc;
clear;
n=2000; //Number of Nitrogen molecule in mol
R=0.08206; //Gas constant in L atm K^-1 mol^-1
T=898; //Tempreture in kelvin
V=800; //Volume of vessel in L
b=0.0386; //Van der walls constant in L /mol
a=1.35; //Proportionality constant in L^2/mol^2
P1=((n*R*T)/(V-(n*b)))-((a*n^2)/(V^2)); //Pressure of gas in atm
printf("(a) Pressure of gas when Nitrogen behaves as Van Der Valls Gas = %.0f atm",P1);
P2=(n*R*T)/V; //Pressure of gas if Nitrogen behaves as an ideal gas
printf("\n(b)Pressure of gas if Nitrogen behaves as an ideal gas = %.0f atm",P2);
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