Clausius inequality boundary Reservoir at Tres 80 ≤ T Intermediary cycle_- Kelvin-Plank statement Combined system δW --A corollary of the 2nd law boundary Applicable to any cycle System δW "="no irreversibility within the system System boundary “<“:internal irreversibilities are present No irreversibility for irreversibility only the intermediary cycle within the system 上游充通大 Apr/10,Mon,2017 4 SHANGHAI JIAO TONG UNIVERSITYApr/10, Mon, 2017 4 Clausius inequality -- A corollary of the 2nd law Applicable to any cycle No irreversibility for the intermediary cycle “=”: no irreversibility within the system “<“: internal irreversibilities are present Kelvin-Plank statement irreversibility only within the system boundary