How much heat is lost per pound of water when it freezes at 32°F?

Prepare for the Custodian Engineer Test with our comprehensive guides. Use flashcards, multiple-choice questions, and detailed explanations to enhance your learning and pass your exam!

Multiple Choice

How much heat is lost per pound of water when it freezes at 32°F?

Explanation:
When water freezes at 32°F, it releases a significant amount of heat energy in the process known as latent heat of fusion. This is the energy required to change water from a liquid to a solid state without changing its temperature. The amount of heat lost per pound of water during this phase transition is approximately 144 BTU. This value is critical because it highlights the energy involved in water's phase changes, which is essential in understanding various engineering and environmental processes. In this case, when one pound of water freezes at 32°F, that amount of heat energy (144 BTU) is released into the surroundings, which can have implications for heating systems, building design, and other applications that involve temperature management. The other figures provided do not correctly reflect the latent heat associated with the freezing of water, leading to their exclusion as correct answers in this context.

When water freezes at 32°F, it releases a significant amount of heat energy in the process known as latent heat of fusion. This is the energy required to change water from a liquid to a solid state without changing its temperature. The amount of heat lost per pound of water during this phase transition is approximately 144 BTU.

This value is critical because it highlights the energy involved in water's phase changes, which is essential in understanding various engineering and environmental processes. In this case, when one pound of water freezes at 32°F, that amount of heat energy (144 BTU) is released into the surroundings, which can have implications for heating systems, building design, and other applications that involve temperature management.

The other figures provided do not correctly reflect the latent heat associated with the freezing of water, leading to their exclusion as correct answers in this context.

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy