A lead ore, galena, consisting mainly of lead(II) sulfide, is the principal source of lead. To obtain the lead, the ore is first heated in the air to form lead oxide.   PbS + 3/2 O2 ----> PbO + SO2 Change of Heat: - 415.4 kJ   The oxide is then reduced to metal with carbon.   PbO + C -----> Pb + CO Change of Heat: + 108.5 kJ   Calculate change of heat for the reaction of one mole of lead(ll) sulfide with oxygen and carbon, forming lead, sulfur dioxide, and carbon monoxide.

Q: 5. Cite the (1) phases that are present and (2) the phase compositions for the following alloys.…

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Q: reaction of 1 mol of solid phosphorus with chlorine gas to form PCl3(g) releases 287 KJ of heat…

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Q: 1. Determine the enthalpy change when 20 mol of the following mixture is heated from 120°C to 400°C.…

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Q: A.) If ammonia is fed to a continuous reactor at a rate of 150kn/h, what oxygen feed rate (kn/h)…

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Q: What does a ratio of 0.65385 O2 to NH3 mean about the reaction? There is no limiting reagent. O 02…

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Q: 5. Given 2Cuo→204 +0 AH° = 314.6 kl a. Determine the heat of formation of Cuo. b. Calculate the…

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Q: determine the enthalpy of formation at 298 K

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