3. program proyecto2 integer ::opcion integer ::FM,CM real ::bm,suma,ac,A,ma,c,d,e,f,Pe,Q,P,T,De,th,Z1,Z2,Z3,u,v,Zr1,Zr2,Zr3,Zi2,Zi3 real ::Zg,Vm,densidad,ui,uo real,allocatable ::M(:,:),R(:,:) real,dimension ( 10 )::ai,bi,mi,alfa,yimi write (*,*)'_____Menu______' write (*,*)' ' write (*,*)'oprima:' write (*,*)' ' write (*,*)'1.Calcula la densidad y Vm' write (*,*)' ' write (*,*)'oprima cualquier numero para salir' read (*,*)opcion

4. do while (opcion==1) open ( unit =10, file ='datos.txt', action ='read') read ( 10 ,*)FM,CM allocate (M(FM,CM),R(FM,CM)) do i=1,FM,1 read ( 10 ,*)M(i, 1 :CM) end do close ( 10 ) suma= 0.0 do i= 1 ,FM, 1 suma =suma+M(i, 1 ) end do Abre el archivo , lee los datos

5. write(*,*)' ' write(*,*)'la suma de las composiciones es =',suma bm=0.0 ma=0.0 if(suma==1)then write(*,*)' ' write(*,*)'Escriba los valores de Presion y Temperatura' write(*,*)' ' write(*,*)'Presion:' read(*,*)P write(*,*)' ' write(*,*)'Temperatura:' read(*,*)T write(*,*)' ‘ do i=1,FM,1 ai(i)=0.45724*((10.737*M(i,3))**2) ai(i)=ai(i)/M(i,4)

6. bi(i)=0.07780*10.737*M(i,3)/M(i,4) mi(i)=0.3746+(1.5423*M(i,5))-(0.2699*(M(i,5)**2)) alfa(i)=(1+(mi(i)*(1-((T/(M(i,3)))**0.5))))**2 bm=bm+(M(i,1)*bi(i)) ma=ma+((M(i,1))*(M(i,2))) yimi(i)=(M(i,1))*(M(i,2)) end do open(unit=20,file='tabla.txt' ,action='write',status='replace') do i=1,FM,1

7. R(i,1)=ai(i) R(i,2)=bi(i) R(i,3)=yimi(i) R(i,4)=mi(i) R(i,5)=alfa(i) end do do i=1,FM,1 write(20,*)(R(i,1:CM)) end do close(20) call calculos(M,ac,ai,alfa,A,P,T,B,bm,FM) c=1.0 d=B-1 e=A-(3*(B**2))-(2*B) f=(A*B)-(B**2)-(B**3) SUBRUTINA

8. Pe=((3*(e/c))-((d/c)**2))/3 Q=((2*((d/c)**3))-(9*(d*e/(c**2)))+(27*f/c))/27 De=((Pe/3)**3)+((Q/2)**2) if(De<0)then write(*,*)'todas las raices son reales' th=(cos(-Q/(2*sqrt(((abs(Pe))**3)/27)))) Z1=(2*sqrt((abs(Pe))/3)*cos(th/3))-(d/(3*c)) Z2=(-2*sqrt((abs(Pe))/3)*cos((th+3.1416)/3))-(d/(3*c)) Z3=(-2*sqrt((abs(Pe))/3)*cos((th-3.1416)/3))-(d/(3*c)) if(Z1>Z2.and.Z1>Z3)then Zg=Z1 else if(Z2>Z3)then Zg=Z2 else Zg=Z3 end if end if else

9. if(De==0)then write(*,*)'Existen solo raices reales dos de ellas son iguales' else write(*,*)' ' write(*,*)'Existen raices reales e imaginarias' u=((abs((-Q/2)+sqrt(De))))**(1.0/3.0) v=((abs((-Q/2)-sqrt(De))))**(1.0/3.0) end if Zr1=(u+v)-(d/(3*c)) Zr2=(-(u+v)/2)-(d/(3*c)) Zr3=(-(u+v)/2)-(d/(3*c)) Zi2=(sqrt(3.0))*(u-v)/2 Zi3=-(sqrt(3.0))*(u-v)/2 if(Zr1>Zr2)then Zg=Zr1 else Zg=Zr2 end if

10. end if densidad=(P*ma)/(Zg*10.737*T) Vm=Zg*10.737*T/P write(*,*)' ' write(*,*)'el valor de Zg es:',Zg write(*,*)' ' write(*,*)'la densidad es:',densidad write(*,*)' ' write(*,*)'el volumen molar del gas es:',vm write(*,*)' ‘ open(unit=30,file='resultados.txt' ,action='write',status='replace') write(30,*)'el Zg es:',Zg,'la densidad es:',densidad,'el Vm es',Vm close(30)

11. else write(*,*)' ' write(*,*)'ERROR:la suma de las composiciones es diferente de uno corrija los datos ' end if write(*,*)'_____Menu______' write(*,*)' ' write(*,*)'oprima:' write(*,*)' ' write(*,*)'1.Calcula la densidad y Vm' write(*,*)' ' write(*,*)'oprima cualquier numero para salir' read(*,*)opcion end do end program proyecto2

12. subroutine calculos(M,ac,ai,alfa,A,P,T,B,bm,FM) integer::FM real,dimension(10,10)::M real,dimension(10)::ai,alfa real::ac,A,P,T,B,bm do i=1,FM,1 do j=1,FM,1 ac=ac+((M(i,1)*M(j,1))*((ai(i)*ai(j)*alfa(i)*alfa(j))**0.5)) A=ac*P/((10.737*T)**2) B=bm*P/(10.737*T) end do end do return end subroutine calculos VOLVER