A real enging operates between Tc andTh. During a certain time, an amount Qcof heat is released to the cold reservoir. During that time, whatis the maximum amount of work Wmax that an engine mighthave performed? useful equations:Qc/Qh= Tc/Th andW=Qh-Qc A real enging operates between Tc andTh. During a certain time, an amount Qcof heat is released to the cold reservoir. During that time, whatis the maximum amount of work Wmax that an engine mighthave performed? useful equations:Qc/Qh= Tc/Th andW=Qh-Qc