Depends on the mixture.
There are two different reactions when atoms bond: exothermic and endothermic. During an exothermic reaction, energy is given off in the form of heat or light. In a endothermic reaction, energy is absorbed.
The three changes of state during which energy is absorbed is: conduction, convection, & radiation.
Energy is released during freezing.
energy is released
Energy is released during fusion and fission.
energy is absorbed
For example thermal energy.
light energy
energy is either absorbed or released during a phase change
energy is either absorbed or released during a phase change
Yes, energy is absorbed during evaporation. This energy is required to break the bonds between liquid molecules and change them into vapor molecules. This process is endothermic because it absorbs heat from the surroundings.
Energy is absorbed during photosynthesis to convert carbon dioxide and water into glucose and oxygen. This process requires energy from sunlight to drive the chemical reactions that produce glucose as a source of energy for the plant.
Stored as chemical energy in glucose