units                   real
atom_style              full
boundary                p p p
pair_style		lj/class2/coul/long 16.0
read_data		argon_box_1.data
kspace_style		ewald 1.0e-04
molecule		1 argon.molecule 
group                   Ar type 1 
variable       		density equal atoms/vol
variable       		specdensity equal v_density/0.6022
fix            		1 Ar gcmc 1 100 100 1 29494 87.0 1 0.05 mol argon.molecule pressure 0.4 fugacity 0.999 full_energy 
thermo_style   		custom step temp pe press vol v_specdensity
run            		4000
unfix                   gcmc