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:

Utricle

A small, fluid-filled sac in the vestibular system of the inner ear, aiding in the sense of balance.

Vestibule

An entrance or enclosed area between the outer door and the interior parts of a building or structure.

Auditory Tube

Also known as the Eustachian tube, it connects the middle ear to the nasopharynx, helping to equalize pressure in the middle ear.

External Acoustic Meatus

The ear canal, a passage leading from the outer ear to the eardrum.