6. Calculate the Rf values of substances shown below; R -1.00 F-0.59 I F-0.27

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Q: For typical silica optical fibres with ncore = 1.45 and Δ = 5 x 10-3, calculate nclad and  NA

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A:

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Q: what is a rich/lean heat exchanger ? and how will an increase in pressure drop affect it ?

A: It is required to explain a rich/lean heat exchanger.

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Hazard Analysis and Design in Chemical Engineering

Hazard is the intrinsic property of a material or process which harms the people, buildings, or environment. Health, safety, hazard, risk assessment, loss prevention, and environmental consideration play an important role while designing a chemical processing plant. Hazard is often confused with risk. Risk measures the magnitude of loss and injury of likelihood incidents or the consequence and frequency of incidents.