Without Doing Any Calculations,determine Whether the Standard Entropy Change,ΔS° Is

question 134

Multiple Choice

Without doing any calculations,determine whether the standard entropy change,ΔS° is positive or negative for each of the following reactions.
Reaction 1: C(graphite) + O₂(g) → CO₂(g)
Reaction 2: 2 CO(g) + O₂(g) → 2 CO₂(g)

• A)ΔS° is positive for both reactions.
• B)ΔS° is positive for reaction 1 but negative for reaction 2.
• C)ΔS° is positive for reaction 2 but negative for reaction 1.
• D)ΔS° is negative for both reactions.

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Definitions:

Backing Plate

The part of a vehicle's brake system mounted on the rear side of the wheel, serving as a base for other brake components.

Rest Position

The default or neutral position of a component or system when not in use or when no force is being applied.

Shoes

Components of drum brakes that press outward against the drum to create friction and slow down the vehicle.

Nonservo Brake

A drum brake system where the shoes are not self-energizing, typically requiring more pedal force for braking.