What Happens When the Universe Reaches Maximum Entropy?

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SUMMARY

The discussion centers on the concept of entropy in the universe, specifically addressing the misconception that entropy can decrease once it reaches maximum equilibrium. Participants confirm that the entropy of the universe consistently increases, leading to a state of maximum disorder where no energy is available to perform work. This state, often referred to as "heat death," signifies that all processes will cease, and the universe will remain in a static condition indefinitely.

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  • Understanding of thermodynamics and the second law of thermodynamics
  • Familiarity with the concept of entropy and its implications in physical systems
  • Basic knowledge of equilibrium states in physics
  • Awareness of the concept of heat death in cosmology
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  • Research the second law of thermodynamics and its implications for entropy
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  • Explore thermodynamic equilibrium and its characteristics in closed systems
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Students of physics, cosmologists, and anyone interested in the fundamental principles governing the universe's behavior and the implications of entropy on cosmic evolution.

weng cheong
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i was told that entropy of universe always increases.

however i came across this text:

http://docs.google.com/viewer?pid=bl&srcid=ADGEESh1KJo5csExQJgKwUMz73aHUhrrMqH0ag-md2J96bzb5pVWlx039lTKCSCXJB3e1Ns2nSgjqYetum_gM-cyJLGX7wLwBmjUB_MJOZEWvtAPKVoKM4gY83lYr1YIfG15wCVHxyYw&q=cache:W_MDM4qrtcAJ:www-teach.ch.cam.ac.uk/teach/IA/EE_student.pdf%20entropy%20decrease%20energy%20level%20spacing&docid=bb4e67973b4eb6ba159edd5a8ed4ff7d&a=bi&pagenumber=19&w=800

so when the entropy reaches maximum at equilibrium, it will decrease?
 
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weng cheong said:
i was told that entropy of universe always increases.

however i came across this text:

http://docs.google.com/viewer?pid=bl&srcid=ADGEESh1KJo5csExQJgKwUMz73aHUhrrMqH0ag-md2J96bzb5pVWlx039lTKCSCXJB3e1Ns2nSgjqYetum_gM-cyJLGX7wLwBmjUB_MJOZEWvtAPKVoKM4gY83lYr1YIfG15wCVHxyYw&q=cache:W_MDM4qrtcAJ:www-teach.ch.cam.ac.uk/teach/IA/EE_student.pdf%20entropy%20decrease%20energy%20level%20spacing&docid=bb4e67973b4eb6ba159edd5a8ed4ff7d&a=bi&pagenumber=19&w=800

so when the entropy reaches maximum at equilibrium, it will decrease?

The link you've added is broken. The universe always proceeds towards the maximum state of disorder, in other words the energy available to do work always decreases (this is entropy). At some point in the distant future we will reach the point of maximum disorder and nothing will happen forever.
 

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