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sergeinik [125]
3 years ago
11

It has been suggested that a heat engine could be developed that made use of the fact that the temperature several hundred meter

s beneath the surface of the ocean is several degrees colder than the temperature at the surface. In the tropics, the temperature may be 6 degrees C and 22 degrees C, respectively. What is the maximum efficiency (in %) such an engine could have?
Physics
1 answer:
lesantik [10]3 years ago
8 0

Answer:

efficiency = 5.4%

Explanation:

Efficiency of heat engine is given as

\eta = \frac{W}{Q_{in}}

now we will have

W = Q_1 - Q_2

so we will have

\eta = 1 - \frac{Q_2}{Q_1}

now we know that

\frac{Q_2}{Q_1} = \frac{T_2}{T_1}

so we have

\eta = 1 - \frac{T_2}{T_1}

\eta = 1 - \frac{273+6}{273+22}

\eta = 0.054

so efficiency is 5.4%

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