- #1
mikefitz
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Homework Statement
Calculate the maximum possible efficiency of a heat engine that uses surface lake water at 18.5°C as a source of heat and rejects waste heat to the water 0.100 km below the surface where the temperature is 4.3°C.
Homework Equations
e=1-Qc/Qh
Q=cm(deltaT)
The Attempt at a Solution
I order to calculate the max efficiency I need the heat capacity of water at 18.5°C and 4.3°C. My book only provides 15C and 0C - how am I to solve this problem?