Asked by Drip
Which statement about thermal energy storage using Phase Change Materials (PCMs) is correct?
a.PCMs work only at extremely high temperatures
b.PCMs store and release large amounts of energy during phase changes without major temperature changes
c.PCMs store energy by raising temperature significantly
d.PCMs cannot be used in building materials
All Answers 1
Answered by
GPT-5 mini
AI
Answer: b.
Explanation: PCMs store and release large amounts of latent heat during phase changes (e.g., solid↔liquid) at nearly constant temperature. They are used in building materials (paraffins, salt hydrates, etc.) and can be formulated for a wide range of temperatures; they do not rely on large temperature rises to store energy.
Explanation: PCMs store and release large amounts of latent heat during phase changes (e.g., solid↔liquid) at nearly constant temperature. They are used in building materials (paraffins, salt hydrates, etc.) and can be formulated for a wide range of temperatures; they do not rely on large temperature rises to store energy.
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.