What is the ignition temp. of Aluminum,Coper&Iron.

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What is the maximum permissible Earth to Neutral voltage in an electrical system.

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Where the Induced draft, forced draft & balanced draft furnace are to be used? Selection of furnaces are based on which criteria?

0 Answers   IFFCO, MahaGenco,

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Which type of drier is used for drying wet material?

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how much type question asking sulfuric acid plat interview. if not maintain acid temp. and conc. what will happen

1 Answers  

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what is mass flow rate of steam of 7 kg/cm2 pressure in 1 inch id. pipe.

0 Answers   Ascent,

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How can we identify a poisoned food if we are not able to sense it?? . .,(naturally by colour ,smell etc. . .)

1 Answers  

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how can i prepare for gate chemical in kolkata

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What is the reason for removing silicon from aluminum?

3 Answers   IOCL, ONGC,

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Why in a continuous plant for a Hot standby screw pump system the interlock for auto starting of the other pump ( when the running pump stopped suddenly) is given with header pressure only? why not with flow rate or current of the pump?

0 Answers   Haldia,

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MASS TRANSFER - EXAMPLE 4.2 : In a non-dilute absorber, graphical method is used to represent the process. In an X - Y coordinate system, X-axis represents mole of carbon dioxide / mole of water and Y axis represents mole of carbon dioxide / mole of nitrogen. The inlet gas stream consists of 8 mol % of carbon dioxide in nitrogen. (a) Find the S / G minimum as a slope that goes through the point (0, 0.0304) and (0.0000488, 0.086957). (b) Find the actual slope of operating line when it is 1.5 times the S / G minimum! (c) Find the value of x for inlet gas stream when y = 1640 x, y is mole fraction of carbon dioxide in nitrogen.

1 Answers  

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CHEMICAL ENERGY BALANCE - EXAMPLE 11.2 : Calculate the cooling duty, H required to condense and cool acetone from 100 degree Celsius to 25 degree Celsius at atmospheric pressure. The heat of vaporization for acetone at its normal boiling point is 30.2 kJ / mol. The boiling point of acetone at atmospheric pressure is 56 degree Celsius. The flowrate of acetone through the condenser is 100 mol / s = N. Value of sensible heat needed to increase the temperature of acetone in liquid form from 25 to 56 degree Celsius is 4.06 kJ / mol. Value of sensible heat needed to increase the temperature of acetone in vapor form from 56 to 100 degree Celsius is 3.82 kJ / mol. Unit of H is kJ / s.

1 Answers  

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