The four laws of thermodynamics

What does the zeroth law of thermodynamics say?

If two systems are in thermal equilibrium with a third system, then they are in thermal equilibrium with each other.

What does thermal equilibrium mean?

No heat transfers from one object to another because they’re in the same temperature

What does the zeroth law of thermodynamics serve as?

The definition of temperature

When was the zeroth law of thermodynamics created?

After the first, second, and third laws of thermodynamics were

The first three laws were already well known by?

The time the zeroth law came out, but it supersedes all of them

The first law of thermodynamics:

Is another version of the law of conservation of energy, which says that energy can be neither created nor destroyed. It can be transferred to other locations, though, and it can be converted to(and form) other forms of energy. However, the total quantity of energy in the universe always stays the same.

The second law of thermodynamics:

Describes how energy affects matter, as well as the relationships between thermal energy(heat) and other types of energy. It says that more energy is transferred and transformed, the more it’s wasted. It also says that an isolated system has a tendency to degenerate into a more disordered state

The third law of thermodynamics:

That achieving a temperature of absolute zero is impossible. Absolute zero is the temperature matter would reach if contained absolutely no heat energy