Which of the Following Is True for a System at Equilibrium

question 66

Multiple Choice

Which of the following is true for a system at equilibrium?

• A)Δ S° _sys = Δ S° _surr
• B)Δ S° _sys = −Δ S° _surr
• C)Δ S° _sys = Δ S° _surr = 0
• D)Δ S° _univ > 0
• E)None of these choices are correct.

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Definitions:

Biceps Brachii

A muscle in the upper arm that helps in flexing the forearm at the elbow and in rotating the forearm.

Trapezius

A large triangular muscle extending over the back of the neck and shoulders, involved in moving, rotating, and stabilizing the scapula.

Deltoid

A large, triangular muscle covering the shoulder joint, involved in arm rotation and lifting.

Triceps Brachii

A major muscle of the upper arm responsible for extension of the forearm at the elbow joint.