Question

The energy that a log has is transformed when burned. How does the chemical energy of the log compare to the heat and light energy it is transformed into?
The amount of chemical energy is equal to the amount of heat and light energy.


The amount of chemical energy is less than the amount of heat and light energy.


The amount of chemical energy is more than the amount of heat and light energy.


There is no way to know.

Answer 1

The amount of chemical energy is equal to the amount of heat and light energy.

This is due to the principle of conservation of energy, which states that the total energy of a system remains constant.