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Q: Does all energy transformations increase entropy?
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What is an increase in entropy?

In almost every process there is an increase in the entropy in the universe. For example, lets say your room is dirty so you think you are decreasing entropy by cleaning it up (decreasing disorder). The truth is that you expend a great amount of energy cleaning your room, and that energy is ultimately released into the universe as heat energy. That heat energy is a less ordered form of energy than the form you received it in, which are the chemical bonds in food. The chemical bonds in food are relatively ordered, but heat energy is very random. heat energy dissipates into the universe randomly, with little order or integrity. So you see, no process conserves all the energy in the process, as some energy is dissipated, or "wasted", as heat energy. When you hit a pool ball into another, the friction between the balls takes some of the energy of the collision away, in the form of friction. Friction generates heat (as you know from rubbing your hands togeter in the cold). I hope these brief examples demonstrate that all processes increase the entropy of the universe (in the form of heat energy).


What type of energy do you find in all energy transformations?

Thermal Energy


Why do all transformations of energy have a little bit of heat energy?

In all transformations, either energy is absorbed or released. So the reactions involved are either endothermic or exothermic.


What is the law of entropy?

Entropy is the scientific concept of disorder and randomness that has many broad applications across different branches of physics. While it is not a law itself, it is central to understanding the Second Law of Thermodynamics, as objects that are in thermodynamic equilibrium are at their highest state of entropy.


What do all activities of life require?

Energy ... in excess of entropy.


What is increased in all energy transfers?

Entropy is increased.


Why is it that all systems tend towards disorder and lower energy?

"Disorder" is perhaps not the best term. As well, a better usage would be "lower usable energy" and "all closedsystems".And the answer is simply because they do. That is how our universe works. A simplistic understanding indicates that an increase in entropy (meaning less usable energy in a system) is associated with movement through time; not to have entropy increase means not going forward in time, which is physically impossible for several reasons.


What kind of energy when it is gone it is gone?

All forms of energy obey the laws of entropy.


Why Are There no machines that that use energy with 100 efficiency?

From a practical standpoint there are no machines that use energy with 100% efficiency because all movement generates some friction and hence heat and loss of efficiency. Even electrons moving through superconductors generate minute amounts of heat. From a theoretical standpoint it's impossible to get 100% efficiency; all energy transformations increase entropy. Even if you could devise a machine with no friction, the process of converting energy from one form to another ALWAYS increases entropy. It's a result of the second law of thermodynamics. No machine can perform with 100% thermodynamic efficiency. The process used by any machine, be it steam, electric, horse drawn, wind, or whatever, can be reduced to a simple description of heat moving from a higher temperature to a lower temperature. The Carnot cycle provides a means to calculate the maximum theoretical efficiency possible. In reality, this maximum efficiency is NEVER achieved due to heat losses, friction, etc. Note that according to the Carnot cycle, 100% efficiency is impossible. The energy input to the machine can NEVER be entirely converted to useful work. Some of the energy is ALWAYS lost as heat to the surroundings.


When iron rusts is entropy increasing or decreasing?

yes because it is a naturally occurring process and all naturally occurring processes result in an increase in entropy.


Any energy transformation involves the loss of some energy?

Yes, this is called entropy. Any system with no energy input and no energy loss will tend toward dissolution, because of entropy.


what are all the possible energy transformations that occur with a dishwasher that uses electrical energy.?

heat light sound