HT0272 SECOND LAW OF THE HEAT ENGINES AND REFRIGERATORS

Last updated: 6/28/2023

HT0272 SECOND LAW OF THE HEAT ENGINES AND REFRIGERATORS THERMODYNMAMICS 20 250 According to the second law of thermodynamics 1 heat energy cannot be completely converted to work 2 work cannot be completely converted to heat energy 3 for all cyclic processes we have dQ T 0 4 the reason all heat engine efficiencies are less than 100 is friction which is unavoidable