If you have a ball flying through the air then it will start off with its energy organised i.e.As the particle move out and fill up the rest of the container then the entropy (disorder) increases. If all the molecules are in one corner then this would be a low entropy state (highly organised). Let’s say you have a container of gas molecules.Essentially entropy is the measure of disorder and randomness in a system. It’s the core idea behind the second and third laws and shows up all over the place. Entropy and Phase SpaceĮntropy is a very important thing in the realm of thermodynamics. Third law of thermodynamics – As temperature approaches absolute zero, the entropy of a system approaches a constant minimum.īefore I go over these laws in more detail, it will be easier if I first introduce Entropy.Second law of thermodynamics – The entropy of an isolated system not in equilibrium will tend to increase over time, approaching a maximum value at equilibrium.For a thermodynamic cycle the net heat supplied to the system equals the net work done by the system. In any process, the total energy of the universe remains the same. First law of thermodynamics – Energy can neither be created nor destroyed.Zeroth law of thermodynamics – If two thermodynamic systems are each in thermal equilibrium with a third, then they are in thermal equilibrium with each other.There are 4 laws to thermodynamics, and they are some of the most important laws in all of physics.
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