Question 80 - Liquid octane has a density of 703 kilograms per cubic metre and molar mass of 114.23 grams per mole. Its specific heat capacity is 255.68 J / (mol K). (a) Find the energy in J needed to increase the temperature of 1 cubic metre of octane for 1 Kelvin. (b) At 20 degree Celsius, the solubility of liquid octane in water is 0.007 mg / L as stated in a handbook. For a mixture of 1 L of liquid octane and 1 L of water, prove by calculations that liquid octane is almost insoluble in water.

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Explain some good strategies for curing tube vibration in shell and tube exchangers?

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Is there a quick rule-of-thumb to estimate a gas side heat-transfer rate inside the tubes of a shell and tube heat exchanger?

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Is it possible to compare the resistance to chloride attack of several materials of construction?

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Explain how can I evaluate the thermal relief requirements for double block-in of 98% sulfuric acid?

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What is the procedure to estimate the friction factor involved in heat exchanger tubes?

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how to reduce COD from plant waste water closed circulation system

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which type of packing gives large interfacial area stacked or random?

2 Answers   NPCIL,

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Calculate the line size for a cooling water line with a volumetric flowrate of 1200m3/h of water. Density of water = 1000kg/m3

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Explain the different ways in which solids can be blended?

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why we make urea prills , why we do not make crystals of urea,

1 Answers   IFFCO,

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CHEMICAL MATERIAL BALANCE - EXAMPLE 2.5 : In a non-dilute absorber, the inlet gas stream consists of 8 mol % carbon dioxide in nitrogen. By contact with room temperature water at atmospheric pressure, 65 % of the carbon dioxide from a gas stream has been removed. (a) Find the mole ratio of carbon dioxide and nitrogen gases at inlet and outlet gas streams. (b) The Henry's Law provides y = 1640 x for carbon dioxide in water. Find the mole ratio when x = 0.0000427. Mole ratio is y / (1 - y) for y.

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