Sulfur Can Be Separated from Lead in the Mineral Galena $\rarr$

question 74

Short Answer

Sulfur can be separated from lead in the mineral galena, PbS(s), by "roasting" the ore in the presence of oxygen as shown in the following reaction:
2PbS(s)+ 3O₂(g) $\rarr$ 2PbO(s)+ 2SO₂(g)
Determine $\Delta$ G for the above reaction at 850°C.

---

Definitions:

Petroleum Industry

A global sector involved in the exploration, extraction, refinement, transportation, and marketing of petroleum products.

Current Prices

Prices at which goods and services are sold in the market at the present time, not adjusted for inflation.

Technological Improvements

Advances or enhancements in technology that increase efficiency, productivity, or utility in various sectors.

Fracking

A method of extracting oil and natural gas from underground rock formations by injecting a mixture of water, sand, and chemicals at high pressure.