For permanent gases diffusivity the order is _________ sq.m/s

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For permanent gases diffusivity the order is _________ sq.m/s

Options:

A . 10⁻⁷

B . 10⁻⁸

C . 10⁻⁹

D . 10⁻¹⁰

Answer: Option D
Answer: (d).10⁻¹⁰

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