A Real (Non-Carnot) Heat Engine, Operating Between Heat Reservoirs at Temperatures

question 43

Short Answer

A real (non-Carnot) heat engine, operating between heat reservoirs at temperatures of 450 K and 270 K, performs 3.3 kJ of net work, and rejects 8.2 kJ of heat in a single cycle.
(a) What is the thermal efficiency of this heat engine?
(b) What is the maximum efficiency it could possibly have?

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Definitions:

Consciousness

The awareness of internal and external stimuli, including feelings, thoughts, and the environment.

Arousal

A condition of being alert and responsive to sensory inputs, both physically and mentally.

Altered States

Mental states induced by various methods, such as meditation, drugs, or hypnosis, that differ significantly from the normal waking consciousness.

Conscious Experiences

The awareness of one’s own internal states, thoughts, and surroundings.