Computer code for Vander Waals equation | Programming in Chemistry

 As we know the Vander Waals equation -

Now, first we have to make flow chart for our program as below -

Start

Input a,b,R

Input n, V, T

Calculate pressure using Van der Waals equation

P = (n * R * T) / (V - n * b) - (a * n *n)/(V * V)

Print the pressure

End

Program -

#include main()

#include

void main()

{

     float a,b,r,n,v,t,p;

     clrscr();

     printf("\n Enter the value of 'a' for the given gas");

     scanf("%f",&a);

     printf("\n Enter the value of 'b' for the given gas");

     scanf("%f",&b);

     printf("\n Enter the value of Gas Constant");

     scanf("%f",&r);

     printf("\n Enter the value of moles of the given gas");

     scanf("%f",&n);

     printf("\n Enter the value of Volume for the given gas");

     scanf("%f",&v);

     printf("\n Enter the value of Temperature for the given gas");

     scanf("%f",&t);

     

     //Formula used

     

     p=((n*r*t)/(v-n*b))-((a*n*n)/(v*v));

     

     printf("\n the calculated value of pressure is =%f atm",p);

     

     getch();

     

  



}