The first law of thermodynamics states that entropy is constantly increasing in the universe.

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Originally Posted by SexyMarilyn

entropy .

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Sorry what is exactly entropy?

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Originally Posted by SexyMarilyn

The first law of thermodynamics states that entropy is constantly increasing in the universe.

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False, the first law of thermodynamics states that energy cannot be created or destroyed.

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Originally Posted by hmorrar

sorry what is exactly entropy?

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Entropy is a measure of randomness.

for example, ice has a low entropy because it's crystalline and the atoms have a lower number of degrees of freedom, it is more "ordered".
whereas steam has a high entropy, because each molecule has a high degree of freedom.

in any closed system, entropy cannot decrease. This is the second law of thermodynamics.