Question

In: Chemistry

lead (2) sulfide is the principle source of lead metal. to obtain the metal, the sulfide...

lead (2) sulfide is the principle source of lead metal. to obtain the metal, the sulfide is first heated in air to produce pbo.

Solutions

Expert Solution

PbS+3/2O2------------>PbO+ SO2       H= - 415.4 kj ------------> 1

PbO + C-----------> Pb + CO                H=108.5 KJ -------------> 2

Adding two equations

PbS+3/2O2------------>PbO+ SO2       H= - 415.4 kj ------------> 1

PbO + C-----------> Pb + CO                H=108.5 KJ -------------> 2

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PbS + 3/2O2 + C --------> Pb + SO2 + CO    H   = -306.9KJ   >>>>answer


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