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HELP HOME PAGE Make a Practice Test Some Hints & Solutions Introductory Topics Kinematics Mechanics Thermodynamics Optics Electric Fields Magnetic Fields Electric Circuits Vibrations and Waves Thermodynamics: Engine Efficiency An engine extracts energy from a hot reservoir with an efficiency of 0.6418. If this is the highest efficiency that can be obtained while dumping the excess energy into a reservoir at 15.85 C, what is the temperature of the hotter reservoir? C Get Another Engine Efficiency Question Try a Minitest: 6 problems of this type NOTE: While these problems are made by a former University Physics professor and are seen thousands of times a week, it is possible that there are typo's or other errors that nobody has yet reported to be fixed. If you are convinced that there is a problem with the solution to this question please send the details to doug@dctech.com