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.
CHEMICAL ENERGY BALANCE - ANSWER 11.2 : In the same state, total heat changes in heating = total heat changes in cooling for acetone. H = N ( total heat of sensible + heat of vaporization) = 100 (mol / s) [ (30.2) + (4.06 + 3.82) ] (kJ / mol) = 3808 kJ / s. The answer is given by Kang Chuen Tat; PO Box 6263, Dandenong, Victoria VIC 3175, Australia; SMS +61405421706; chuentat@hotmail.com; http://kangchuentat.wordpress.com.
Is This Answer Correct ? | 1 Yes | 0 No |
could any one plzz give me the placement tech papers taken by iocl,and bpcl in chemical stream..... my id is.... mishra.gaurang@gmail.com
sir i am appearing in railway exam of section engineer and my branch is chemical engineering i want previous question paper of section engineer of chemical branch please tell me as soon as possible my email id is surendrasaroj18@gmail.com THANKYOU
What are some common problems associated with dense phase pneumatic conveying?
what is the PH value for boiler water.
i am appearing in railway section engg. exam of chemical eng. therefore i want previous papers and study material of chemical eng.
why u opted for chemical engg?
Explain what is a good way to get started in doing a plant-wide steam consumption analysis?
How can one estimate how the friction factor changes in heat exchanger tubes with a change in temperature?
Is there a rule of thumb to estimate the footprint of a cooling tower during design phase?
What kind of concerns is associated with temperature pinch points in condensers?
What does the catalytic converter on an automobile really do?
Three solid objects of the same material and of equal mass – a sphere, a cylinder (length = diameter) and a cube – are at 5000C initially. These are dropped in a quenching bath containing a large volume of cooling oil each attaining the bath temperature eventually. The time required for 90% change of temperature is smallest for a) cube b) cylinder c) sphere d) equal for all the three whyyyyyyy???????