同学们好! QI 几 815. 5 The efficiency of real heat engines and refrigerator engines 3. Absolute zero and the third law of thermodynamics The absolute zero of temperature is ar unataintable temperature: reservirs with T=0 Cannot exist14 同学们好！ §15.5 The efficiency of real heat engines and refrigerator engines 3. Absolute zero and the third law of thermodynamics The absolute zero of temperature is an unataintable temperature; reservirs with TC=0 Cannot exist