Galena (an ore) is partially oxidized by passing air through it at...

Galena (an ore) is partially oxidized by passing air through it at high temperature. After some time, the passage of air is stopped, but the heating is continued in a closed furnace such that the contents undergo self-reduction. The weight (in

kg

)

of Pb

produced per

kg

{O}_{2}

consumed is ____. (Atomic weights in

g{mol}^{- 1}: O = 16, S = 32, Pb = 207

)

Galena (an ore) is partially oxidized by passing air through it at high temperature. After some time, the passage of

Correct answer

Step-by-step solution

Galena (an ore) is partially oxidized by passing air through it at high temperature. After some time, the passage of
$molofPb = molof{O}_{2}$
$= \dfrac{1000}{32}mol$

$mass = moles \times molecularmass$
$∴$ Mass of $Pb = \dfrac{1000}{32} \times 207g$
$= \dfrac{207}{32}kg = 6 . 47kg$

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