I learned about the energy only changes form recently and was wondering how heat death in the end of the universe would work because “all energy is lost from the universe”
In: Physics
Energy naturally spreads out via thermodynamics, but at the same time the universe is becoming larger and larger via expansion, and as a result the finite amount of available energy is being spread across a larger and larger amount of space.
Further, due to the 2nd Law of Thermodynamics, the ability of energy to do work is directly tied to the imbalance of energy between two different sides of a given reaction. The less imbalance there is, the less work can actually be done, and once all the energy of the universe is spread evenly across spacetime, it will be thermodynamically impossible for anything to happen, regardless of how much actual energy there is.
Latest Answers