When does an energy transfer take place?

Answer 1

You can transform thermal energy to electrical energy in a power plant, chemical energy to mechanical energy in an internal combustion engine, or nuclear energy into thermal energy in a nuclear reactor. These are just three examples.

Answer 2

Usually any energy system uses or produces heat energy, often by friction or by direct transfer. When writing your body is converting chemical energy into mechanical energy in the act of movement. By exerting, or using energy your body also produces excess heat, in a very small amount, which it then has to dissipate by perspiration. The friction of the pencil tip on the paper also produces a tiny amount of heat energy, and finally entropy occurs, which is a loss of energy to the universe, which occurs with every transformation of energy. There are more energy transformations that occur within the human body, but these are the basic ones for the specific operation.

Answer 3

When there is transfer of electrons ,Energy transfer takes place.