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If energy is added to a boiling liquid at its boiling point, what will happen?
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8. Thermochemistry
Nature of Energy
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When a log burns in a campfire, which energy transformation primarily occurs?
A
Thermal energy is converted to chemical energy.
B
Chemical energy is converted to thermal and light energy.
C
Kinetic energy is converted to electrical energy.
D
Potential energy is converted to nuclear energy.
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Identify the type of energy stored in the log before it burns. The log contains chemical energy stored in the bonds of its molecules.
Understand what happens during combustion: the chemical bonds in the log break and new bonds form, releasing energy.
Recognize the forms of energy released during burning: primarily thermal energy (heat) and light energy (flames).
Match the energy transformation: chemical energy in the log is converted into thermal and light energy during combustion.
Conclude that the correct energy transformation is: Chemical energy is converted to thermal and light energy.
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