Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
Promoted
Mechanical engineering question thermo?
Calculate the efficiency of a Carnot heat engine operating between a high temperature reservoir at 905 C and a low temperature reservoir at 49 C. Enter your answer in percent to one decimal place.
1 Answer
Relevance
- oeman50Lv 76 months ago
The Carnot efficiency is defined as 1 - Tcold/Thot. So all you need to do is convert the temperatures into absolute and calculate:
1 - (322K/1178K) = 0.727, Converting to % = 72.7%
Still have questions? Get your answers by asking now.