Identify the arrows that show removal of thermal energy when matter changes state.
Identify the arrows that show removal of thermal energy when matter changes state
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To identify the arrows that represent the removal of thermal energy when matter changes state, we look for changes that suggest a cooling process (going from gas to liquid or liquid to solid).
In this case:
Therefore, both arrows pointing left (from gas to liquid and from liquid to solid) show the removal of thermal energy during changes in the state of matter.