Example 1.5-1 Estimate the viscosity of liquid benzene
Using convu:
1.000000 erg = 0.1000000E-06N*m
1.000000 N = 1.000000 Pa*m*m 
1.000000 Pas = 10.00000 poise  
>  restart;
>  Vtil:=89*cm^3/mol;
>  Tb:=80.1*C;TbK:=(Tb/C+273.15)*K;T:=293.2*K;
>  NAv:=6.023e23*molec/mol;h:=6.62608e-27*erg*s;
>  mu:=NAv*h/Vtil*exp(3.8*TbK/T);
[Maple Math]
>  erg:=1e-7*N*m; cm:=m/100;
>  mu;
[Maple Math]
>  N:=Pa*m^2; mu;
>  Pa:=1000*mPa; mu;
>  Pa:=10*poise/s;
>  mu;
[Maple Math]