Determine the maximum allowable temperature that will produce a flux of less than 2000 H atoms cm2 ? s through a BCC iron foil when the concentration gradient is 25 31016 atoms cm ? cm3. (Note the negative sign for the flux.)

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answer: -

reaction:

na + cl ⇌ nacl

balanced chemical equation:

na + 2cl ⇌ nacl2

sodium + clorine goes to form sodium chloride (table salt).

the product is nacl2.

and the reactants are na and cl.

(note: if you don’t know what ⇌ means, read below: -

⇌(double head arrow) means reversible reaction).

what are the statements