What is the hottest temperature the universe has ever been?

1 Answer
Phillip E.
Jun 20, 2017

It is thought that the hottest the universe has been is #10^32K#.

Explanation:

The hottest the universe has been is #10^(-42)# seconds after the Big Bang when the temperature was #10^32K#. That temperature can never be achieved again unless similar conditions occur.

It is thought that the fundamental forces separated at a temperature of about #10^28K#. We can never approach those temperatures again.

So, the temperature just after the Big Bang of #10^32K# is the absolute hot as far as our universe is concerned.

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