Single Phase - ChemicalProcessPrinciples(CLD10502) 3.2...

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Chemical Process Principles (CLD 10502) Before you carry out a complete material balance on a process, you must usually  determine various physical properties of the process materials and use these  properties to derive additional relations among the system variables. For example, you know the  composition, temperature, pressure  and  mass flowrate  of  a process stream, and you wish to calculate the volumetric flowrate in order to size  the equipments (pumps, valves and fittings, etc.) that will be used to transport the  stream. Clearly you need the process  fluid density  to perform this calculation. 2.5.1 Liquid and Solid Densities Density of liquid mixtures  1 = Σ x i ρ ρ where x A = mass of A total mass of components(A+B + C +….) 2.5.2 Ideal Gases      To find density of gas at certain temperature and pressure we can use the  ideal gas law PV = n RT where P = absolute pressure of a gas V = volume/volumetric flow rate of the gas n = number of moles or molar flow rate of the gas SAT 1 3.2 Single Phase System
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Chemical Process Principles (CLD 10502) R = gas constant T = absolute temperature The equation may also be written as PÛ = n RT where Û = V/n is the molar volume of the gas. The gas constant R has units of (pressure)(volume)/(mole)(temperature); moreover, 
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Single Phase - ChemicalProcessPrinciples(CLD10502) 3.2...

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