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CaHeK987 [17]
3 years ago
8

They create a heat engine where the hot reservoir is filled with water and steam at equilibrium, and the cold reservoir is fille

d with ice and water at equilibrium. What is the Carnot efficiency for their heat engine if the pressure is constant at 1.0 atmospheres?
Physics
1 answer:
Marizza181 [45]3 years ago
4 0

Answer:

The efficiency of Carnot's heat engine is 26.8 %.

Explanation:

Temperature of hot reservoir, TH = 100 degree C = 373 K

temperature of cold reservoir, Tc = 0 degree C = 273 K

The efficiency of Carnot's heat engine is

\eta = 1-\frac{Tc}{T_H}\\\\\eta = 1 -\frac{273}{373}\\\\\eta =  0.268 =26.8 %

The efficiency of Carnot's heat engine is 26.8 %.

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Answer:

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Hans' power

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Given: m = 100 kg, h = 2 m, g = 9.8 m/s², t = 3 s

Substitute into equation 1

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P' = 9800/20

P' = 490 W

from the above,

since P>P'

Hence, Hans is more powerful

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