Questions by MargaritaL74

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1 answer 44 views

How does air pollution contribute to the development of respiratory diseases in humans? Specifically, what are the chemical mechanisms involved in the formation of pollutants and their effects on human lung tissue?

asked 6 days ago in Environmental Chemistry

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1 answer 49 views

How can a chemical engineer design a process for the purification of a specific chemical compound, taking into account its physical and chemical properties, and ensuring maximum yield and purity while minimizing waste and cost?

asked 6 days ago in Chemical engineering

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1 answer 48 views

Calculate the Gibbs free energy change (ΔG) for the reaction below at 298 K given the following standard Gibbs free energy of formation data: 2H2(g) + O2(g) → 2H2O(l) ΔG°f (kJ/mol): H2(g) = 0 O2(g) = 0 H2O(l) = -237.14

asked Jan 23 in Chemical thermodynamics

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1 answer 45 views

Calculate the corrosion rate of a steel rod when it is placed in a galvanic coupling with a copper strip at 25°C. The initial weight of the steel rod was 28.6 g and it lost 0.48 g in weight after 24 hours of exposure. The area of the steel rod in contact with the electrolyte solution is 3.14 cm² and the electrode potential of the copper strip is +0.34V while the electrode potential of the steel rod is -0.44V. Using Faraday’s law of electrolysis, determine the corrosion rate of the steel rod in mmpy (mils per year).

asked Jan 23 in ElectroChemistry

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