Which of the Following Phase Changes Has a Positive Value

question 33

Multiple Choice

Which of the following phase changes has a positive value for its entropy change?

• A)boiling water
• B)formation of raindrops from a cloud
• C)making dry ice from gaseous CO₂
• D)making ice cubes from liquid water

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Definitions:

Caliper Piston

A cylindrical component within a brake caliper that moves under hydraulic pressure to press brake pads against the brake rotor, slowing or stopping the wheel.

Bleed Nut

A component used in hydraulic and air systems to release air or fluid, ensuring the system functions efficiently without airlocks or pressure issues.

Displaced Fluid

Fluid that has been moved or forced out of its original position, especially in the context of mechanical systems or during processes like displacement pumping.

Air-over-hydraulic Brake System

A brake system that uses air pressure to actuate hydraulic brakes, combining elements of both air and hydraulic braking systems.