An Ideal Gas Is Allowed to Undergo a Free Expansion

question 44

Multiple Choice

An ideal gas is allowed to undergo a free expansion. If its initial volume is V₁ and its final volume is V₂, the change in entropy is

• A) nR ln (V₂/V₁)
• B) nRT ln (V₂/V₁)
• C) nk ln (V₂/V₁)
• D) 0
• E) nR V₂/V₁

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Definitions:

Wye-Wound Stator

A specific method of connecting the coils of a stator in an electric motor or generator, forming a Y shape, to reduce starting currents and provide smooth operation.

Neutral Junction

A connection point in an electrical system where the neutral wires from different circuits are connected together, typically within a breaker panel or junction box.

Series

A configuration in electrical circuits where components are connected end-to-end, so the same current flows through each component.

TR Type Alternator

A specific design of alternators used in automotive applications, known for its efficiency in generating electrical power for the vehicle.