Answer Happy

Posted: **Mon May 23, 2022 12:22 pm**

: 8 One Of The Most Efficient Heat Engines Ever Built Is A Coal Fired Steam Turbine In The Ohio River Valley Operating B 1 (14.54 KiB) Viewed 13 times

8. One of the most efficient heat engines ever built is a coal-fired steam turbine in the Ohio River valley, operating between 1870°C and 430°C. Its actual efficiency is 42%. What is the absolute maximum theoretical efficiency of this engine? A. 42% B. 50% C. 105% D. 67% E. 84%