Question

what is formula of residence
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Answer 1

卄乇ㄚ 爪卂ㄒ乇 ♥️

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residence time: Tr = V/I [T], a measure of the average time a molecule of water spends in a reservoir. The residence time defined for steady-state systems is equal to the reservoir volume divided by the inflow or outflow rate..

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Answer 2

Answer:

Hi

You have written that you are in class 7 in your profile

And you also know about syllabus of class 9 NSO exam