A Heat Engine Operates Between a Hot Reservoir at 1500

question 42

Multiple Choice

A heat engine operates between a hot reservoir at 1500 K and a cold reservoir at 500 K.During each cycle,1.0 × 10⁵ J of heat is removed from the hot reservoir and 5.0 × 10⁴ J of work is performed.
-Determine the change in entropy of the cold reservoir.

• A)-1.0 × 10² J/K
• B)+1.0 × 10² J/K
• C)-1.8 × 10² J/K
• D)+1.8 × 10² J/K
• E)-2.0 × 10² J/K

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Definitions:

Repolarization

The process by which a cell's membrane potential is restored to its resting state after depolarization.

Chemoreceptors

Sensory receptors in the body that respond to chemical stimuli, playing a crucial role in taste, smell, and monitoring chemical composition of blood.

Carbon Dioxide Levels

The concentration of carbon dioxide gas in a given environment, often measured in the blood to evaluate respiratory function.

Epinephrine Release

Epinephrine release involves the secretion of the hormone epinephrine (adrenaline) from the adrenal medulla, triggering the body's fight-or-flight response.