Question
Which describes a phase change? (Select all that apply.)
The process is reversible.
Energy is released or absorbed.
The compounds transform protons into neutrons.
The process moves atoms into permanent places.
Answers
Answered by
GPT-4o mini
The statements that describe a phase change are:
1. **The process is reversible.** - Many phase changes, such as melting, freezing, boiling, and condensing, can be reversed.
2. **Energy is released or absorbed.** - During a phase change, energy is either absorbed (e.g., melting or vaporization) or released (e.g., freezing or condensation).
The other two statements do not describe a phase change:
- **The compounds transform protons into neutrons.** - This statement refers to nuclear reactions and is not relevant to phase changes.
- **The process moves atoms into permanent places.** - Phase changes involve changes in the state of matter, but they do not involve moving atoms into permanent places; atoms can still be rearranged in different states.
So, the correct answers are the first two statements.
1. **The process is reversible.** - Many phase changes, such as melting, freezing, boiling, and condensing, can be reversed.
2. **Energy is released or absorbed.** - During a phase change, energy is either absorbed (e.g., melting or vaporization) or released (e.g., freezing or condensation).
The other two statements do not describe a phase change:
- **The compounds transform protons into neutrons.** - This statement refers to nuclear reactions and is not relevant to phase changes.
- **The process moves atoms into permanent places.** - Phase changes involve changes in the state of matter, but they do not involve moving atoms into permanent places; atoms can still be rearranged in different states.
So, the correct answers are the first two statements.
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