What Would Happen if the Earth Was Shrunk to the Size of a Small Particle?

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SUMMARY

If the Earth were shrunk to a size of approximately 10^-11 meters while maintaining its mass, it would become a black hole due to the extreme density. The gravitational properties would drastically change, leading to a singularity where traditional physics, as described by general relativity, no longer applies. In the context of an exothermic reaction, humans would not feel cold, as the conditions would be dominated by the black hole's gravitational effects rather than thermal energy transfer.

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If the Earth was to be shrunk to the size of a small particle (around the size of *10^-11m) how would the properties differ? (given that the mass remains constant)
How would the properties differ if the mass size ratio was the same?
If it was involved in an exothermic reaction (and us humans were on it.. well assuming we can somehow) would we feel cold?
 
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At that size it would be a black hole.
 

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