- TL;DR Summary
- From my understanding, we can think of entropy as how spread out energy is within a system. The more spread out, the more entropy. The more condensed, the less entropy.
If you were to condense all the energy in the universe into a point, wouldn't the temperature be very high, yet the entropy be very low? Also if you were to spread out all of the energy in the universe, wouldn't the temperature be near zero and the entropy be very high? And this makes entropy units - J/K - make sense. Because the total amount of energy in the universe is constant (2nd Law Thermodynamics), yet the average energy (temperature) seems to decrease, this would mean that the entropy of the universe can only net increase. Is this a correct understanding of entropy or am I off? Thanks for your help.