SC-424
Changes of state
Lower Sec Science · Secondary 1 · Medium · Changes of state
A student heats a solid until it becomes a gas directly, without forming a liquid. Which change in particle arrangement best describes this process?
- From closely packed and fixed to far apart and moving freely
- From far apart and moving freely to closely packed and fixed
- From closely packed and sliding to closely packed and fixed
- From far apart and fixed to closely packed and sliding
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