Answered Essay: Can you please show me step by step in matlab code so i can undestand because i'm not understanding how to use ma

Can you please show me step by step in matlab code so i can undestand because i’m not understanding how to use matlab at all. Also what is a cell? on my asisgnment it says all of these questions should be in the same cell.

Expert Answer

 

Problem 3:

Matlab code:

n=1; %1 mol of gas
R=0.08206; %gas constant
V=22.41; %volume in litres
T=273.2; %temperatur in kelvin
a=6.49;
b=0.0562;
P1=(n*R*T)/V; %Pressure calculated through ideal gas law
disp(‘Pressure Calculated through Ideal gas law equation’);
disp(P1);
P2=((n*R*T)/(V-n*b))-((a*n^2)/V^2); %Pressure calculated through van der Waals equation
disp(‘Pressure Calculated through van der Waals equation’);
disp(P2);

P_change_1=abs(P1-((n*R*T)/(V-n*b))); %pressure change due to volume correction
P_change_2=abs(P1-((a*n^2)/V^2)); %pressure change to correction for molecular attractions

%more change in pressure estimate more effect
if(P_change_1>P_change_2)
disp(‘difference in pressures is due to molecular volume’);
else
disp(‘difference in pressures is due to molecular attractions’);
end

Output:

Problem 4

Matlab code:

syms x % syms Short-cut for constructing symbolic variables used in equations
result=solve(13*x^3+182*x^2-184*x+2503); %solve command solves the equation in matlab
eval(result); %solve gives values in raw form eval command convert them into normal values
disp(eval(result)) %displays the evaluated result

Output

:

Cell:

A cell array is a data type with indexed data containers called cells, where each cell can contain any type of data. Cell arrays commonly contain either lists of text strings, combinations of text and numbers, or numeric arrays of different sizes.

If you have any doubt in matlab regard commands type help in matlab command you can learn more about the command there

like help solve gives idea about solve command

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