The efficiency of Carnot Cycle depends upon the change in the
Correct answer: A. mass of active substance.
- A. mass of active substance.
- B. volume of active substance.
- C. pressure on the hot reservoir.
- D. temperature of hot and cold reservoirs.
Explanation
The efficiency of a Carnot cycle, which is a theoretical thermodynamic cycle, is solely dependent on the absolute temperatures of the hot and cold reservoirs between which it operates. The formula for Carnot efficiency (η) is given by: η = 1 - (T_cold / T_hot) Where: * T_cold is the absolute temperature of the cold reservoir (sink). * T_hot is the absolute temperature of the hot reservoir (source). This formula clearly shows that the efficiency is a function of these two temperatures.
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About First Law of Thermodynamics
The first law relates heat supplied, work done and the change in internal energy through energy conservation. Problems use sign conventions and apply the law to isothermal, adiabatic, isobaric and isochoric processes. Internal energy is a state function, while heat and work depend on the path followed.
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