3K universal blackbody temperature radiation

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Homework Help Overview

The discussion revolves around the implications of the 3K universal blackbody temperature radiation in the context of outer space temperature. Participants explore its significance as a remnant of the Big Bang and its role in defining the lowest possible temperature for empty space.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants discuss the idea that 3K radiation represents a fundamental temperature limit in space and question the existence of regions with temperatures below this threshold. There is also an exploration of the implications of heat flow in relation to this temperature.

Discussion Status

The discussion is ongoing, with participants providing insights into the nature of temperature in space and the concept of equilibrium. Some guidance has been offered regarding the impossibility of achieving temperatures below 3K in natural conditions, while acknowledging the potential for artificial systems to operate at lower temperatures.

Contextual Notes

There is a mention of the relationship between temperature and heat flow, as well as the constraints imposed by the laws of thermodynamics in the context of cosmic temperatures.

neelakash
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Homework Statement



What does the 3K universal blackbody temperature radiation tell us about the temperature of the outer space?

Homework Equations


The Attempt at a Solution



the 3K universal blackbody radiation is regarded as the remnant of the Big Bang.And this temperature looms all over the space.
I know this much(not sure if correct).

Please check this.
 
Physics news on Phys.org
It also tells you the lowest possible temperature for empty space.
Heat always flows from hot to cold - if you had any point in space less than 3K and it is surrounded on all sides by a background of 3K what would happen?
 
so,there cannot be such a place with lower T.That would reduce the Temperature 3K
 
Correct, nothing in space can come to equibrium at a temperature below 3K
Atlthough you can obviously have man(or alien!)-made devices at below 3K but only be using energy.
 

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