Question
When does a change in energy occur?
In every chemical change but not in a physical change
In every chemical or physical change
In every chemical change but not in a physical change
In every chemical or physical change
Answers
GPT-4o mini
A change in energy occurs in **every chemical or physical change**.
In chemical changes, energy is usually transformed in the form of heat, light, or sound due to the breaking and forming of bonds. In physical changes, energy may also change forms, for example, when melting ice absorbs energy to turn into water or when boiling water releases steam. Therefore, both types of changes involve energy changes.
In chemical changes, energy is usually transformed in the form of heat, light, or sound due to the breaking and forming of bonds. In physical changes, energy may also change forms, for example, when melting ice absorbs energy to turn into water or when boiling water releases steam. Therefore, both types of changes involve energy changes.