ALL meanings of first law of thermodynamics
first law of ther·mo·dy·nam·ics
F f - noun first law of thermodynamics any of three principles variously stated in equivalent forms, being the principle that the change of energy of a thermodynamic system is equal to the heat transferred minus the work done (first law of thermodynamics) the principle that no cyclic process is possible in which heat is absorbed from a reservoir at a single temperature and converted completely into mechanical work (second law of thermodynamics) and the principle that it is impossible to reduce the temperature of a system to absolute zero in a finite number of operations (third law of thermodynamics) 1
- noun first law of thermodynamics zeroth law of thermodynamics. 1