Applications of entropy principle Transfer of heat through a finite temperature difference Since

Applications of entropy principle 2) Mixing of two fluids

And the final temperature is equal to Since the system is isolated, the heat lost by fluid-1 is equal to the heat gained by fluid-2 And the final temperature is equal to (Since ) (Since )

If m1=m2=m and cp1=cp2=cp, then (or) If m1=m2=m and cp1=cp2=cp, then (Since AM > GM)

Maximum work obtainable from two finite bodies at different temperatures

Therefore maximum work obtainable is equal to is minimum when (or) Therefore maximum work obtainable is equal to