Answer:
Transferring heat to a body.
Step by step answer:
Entropy refers to the degree of disorder of a system. This increases when we move from a state of greater order to one of a greater degree of disorder.
By heating a body, this causes the energy of the body to increase. This means that the speed of the molecules that compose it increases and makes them collide more frequently between them, creating an increase in the degree of disorder that exists.
A clear example of heat transfer is when a body changes its state and moves from an orderly state to one of greater disorder.
For example:
- Moving from a solid state to a liquid state:
Melt an ice cube
- Move from liquid to gaseous:
Heat water until it starts to boil and turns into steam
You do not necessarily have to change the state to increase the entropy.
For example when heating water without boiling.
