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//Chapter 2 Gases
clc;
clear;
//Initialisation of Variables
V= 0.5 //lit
T= 50 //C
n= 1 //mole
R= 0.0821 //lit atm mole^-1
a= 4.28*10**-2 //litres mole^-1
b= 3.6 //arm mole^-2 lit^2
//CALCULATIONS
P= n*R*(273+T)/V
P1= (n*R*(T+273)/(V-n*a))-(b/V**2)
//RESULTS
mprintf("Pressure = %.0f atm",P)
mprintf("\nPressure using vanderwals equation= %.1f atm",P1)
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