THERMODYNAMIC OPEN SYSTEM : A system which can exchange matter and energy with the surrounding is called an open system. Example air compresser . Air at low pressure enter and high pressure to leave. CLOSE SYSTEM: A System which can exchange only energy (not matter) with the surrounding is called close system. Example gas enclosed a cylinder when heated and drives system outward . ISOLATED SYSTEM A system which is thermally insulated and has no transfer heat with the surrounding is called isolated system. please subscribe my youtube channel @PCMwithme For more updates click now spcmwithme.blogspot.com