Making a function using van der Waals equation

How can I make a basic function using the below information?

The function’s input should be 0 for PH4 and -3 should be for K2N4.

Make the output vectors Pressure, Volume of h, Volume of i.

h and i are just names, they do not refer to any thing below.

van der Waals’ equation: P = nRT/(V-nd) – n2c/V2

3.3 kilograms of a gaseous mixture

PH4= c=4.60 atm*atm*L^2/mol^2 and d = 0.00427 L/mol.

K2N4= c=0.35e6 atm*cm^6/mol^2 and d = 01.8 cm^3/mol.

Answer 1

[Aarthi V]

function y=vander(v)

% in K atm l/gmol

% parameters for n-butane

Tc=425.2

pc=37.5

T=500

p=18

R=0.08206

aRK=27*(R*Tc)^2/64*pc

bRK=(R*Tc/8*pc)

y=p*v^3-(R*T+bRK*p)*v^2+aRK*(v-bRK)

[darova]

Where are points?

% y=p*v^3-(R*T+bRK*p)*v^2+aRK*(v-bRK)
y=p*v.^3-(R*T+bRK*p)*v.^2+aRK*(v-bRK)

Answer 2

[abi]

(p+a\v^2)(v-b)=RT