Which of the following is true? An open thermodynamic system can gain energy in the form of heat and work An open thermodynamic system can gain energy in the form of mass and work An open thermodynamic system can gain energy in the form of heat and mass All of the above Solution an open thermodynamic system can gain energy in the form of heat and work because It exchanges energy (heat and work) and matter with the environment. A boundary allowing matter exchange is called permeable. It\'s possible for an open system to import order and export disorder, locally increasing order a thermodynamically open system, energy (in the form of radiation or matter) can enter the system from the outside environment, thereby increasing the system\'s total energy, E, over the course of time, t. Such energy flow can lead to an increase, a decrease, or no net change at all in the entropy, S, of the system. Even so, the net entropy of system and its environment would.