Is the combustion of methane an exothermic or endotermic?

Answer 1

Endothermic means that the net energy produced when chemical bonds reform is less that the energy required to break the original bonds. (It gets cold because it need more energy from the surrounding molecules)

Exothermic means that the net energy produced is more than the required energy to break the original bonds. (it gets hot because it releases energy)

Using logic and personal experiences, when you ignite something, such as methane, it burns. just the fact that it burns shows that it is releasing energy in the form of light/heat. this makes the combustion of methane Exothermic.

Answer 2

The combustion of methane is exothermic, which means it releases heat energy. This is because the chemical bonds in methane and oxygen are broken and reformed to create new compounds, releasing energy in the process.

Answer 3

This reaction is exothermic. When methane is combusted, energy is released. One way to tell this is that the products (H2O and CO2) are more stable than the reactant, methane.

Answer 4

Respiration is an exothermic reaction.

Answer 5

endothermic