The second lawof thermodynamics is the generalisation of the fact that I) Heat always flows from hot body to cold body by itself II) Heat can flow cold body to hot body itself III)It is impossible for a self acting machine un aided by any external agency to transfer heat from cold body to hotter body

The second lawof thermodynamics is the generalisation of the fact that

1.	The second lawof thermodynamics is the generalisation of the fact that I) Heat always flows from hot body to cold body by itself II) Heat can flow cold body to hot body itself III)It is impossible for a self acting machine un aided by any external agency to transfer heat from cold body to hotter body
Answer» I & II II & III I & III I, II, III & IV Answer :C