capillary...

Somewhere in the coil the flow of refrigerant is slower and also the pressure drops over the distance it has to traval? right?

so does it travel this distance loosing pressure in a small coil pipe in hopes when the refrigerent gets to the evap (larger pipe coil) its lost enough enough pressure to have a zillion vapour droplets colleting heat? like a thermal expansion valve, but with out the sensor or valve?