Assertion :Nitrogen gas will have a greater rate of effusion than oxygen gas. Reason: Lighter, less dense gases travel faster than heavier, more dense gases.

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 A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Assertion
Nitrogen gas will have a greater rate of effusion than oxygen gas
Reason
Lighter, less dense gases travel faster than heavier, more dense gases
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Note: The rate of effusion is inversely proportional to the square root of molar mass. The molar mass of nitrogen is lower than the molar mass of oxygen. Hence, the rate of effusion of nitrogen is higher than the rate of effusion of oxygen.

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