For a Certain Process, at 311 K, ΔG = -20

question 73

Multiple Choice

For a certain process, at 311 K, ΔG = -20.5 kJ and ΔH = -8.00 kJ. If the process is carried out reversibly, what is the amount of useful work that can be performed?

• A) -8.00 kJ
• B) -20.5 kJ
• C) -28.5 kJ
• D) -40.2 kJ
• E) -12.5 kJ

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Definitions:

Split-phase Motor

An AC electric motor that uses a split-phase induction to create a rotating magnetic field for starting torque.

Stator Core

The stationary part of an electric generator or motor, especially the magnetic core, around which the winding is arranged.

Small Wire

A conductor of electricity characterized by a relatively small cross-sectional area, affecting its resistance and current-carrying capacity.

Single-phase Synchronous Motor

A type of AC motor that operates at a constant speed, synchronized with the frequency of the supply current.