Response to the following problem:
Which is the more effective way to increase the thermal efficiency of a Carnot engine: to increase TH, keeping TL constant; or to decrease TL, keeping TH constant see in Fig.?
Make sure you use enough details to support your answer.
![2252_Carnot engine.jpg](https://secure.tutorsglobe.com/CMSImages/2252_Carnot engine.jpg)