Question

Example of chemical energy to thermal energy
a) food is digested and used to regulate body temperature.
b) charcoal is burnt in a barbecue.
c) coal is burnt to produce steam.
d) all of the above.
the figures given below​

Answer 1

Answer:

combustion (including fire): oxygen reacts with a fuel creating products of lower chemical energy with the difference going into heat;

- any exothermic chemical reaction, not necessarily oxidation, for the same reason as above;

- composting: biological decay generating heat is fundamentally a chemical process;

- photochemical reactions: chemical reactions prompted by an input of light generally include heat production.