Assertion :Kelvin Temperature Scale has the Absolute Zero. Reason: At Absolute Zero, the molecular energy is minimum

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
Kelvin temperature scale is an absolute scale as it begins at a minimum point or fixed zero , hence it has an absolute zero .
At absolute zero , motion of the molecules freezes , therefore they have only internal potential energy (as K=0) hence their energy (K+U) becomes minimum .
Hence both, assertion and reason are correct but reason is not a correct explanation of assertion .

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