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Two parallel planes 1.2x1.2 are splited by a distance of 1.2 m. the emissivity's of the planes are 0.4 and 0.6, and the temperature are 760 and 300 oC, correspondingly. A 1.2x1.2 radiation shield having an emissivity of 0.05 on both side situated equidistance among the two planes. The combined arrangement is placed in a large room which is maintained at 40 oC. (a) Determine heat transfer rate from each of the two planes if the shield were not present. (b) Determine heat transfer rate from each of the two planes if the shield were present. (c) Temperature of the shield.
1. Wastewater leaving the ACME cheese factory must be neutralized to a pH between 6.8 and 7.2. Citric acid is available to decrease pH and sodium hydroxide is used to increase pH.
Q. What are the functions of a lubricant? Describe the various types of lubrication. OR Discuss the types of mechanism of lub
equivalant weight ofmg(hco3)2
Find the single pass and overall conversion of CO Carbon monoxide and hydrogen react to form methanol. However nitrogen is often added as an inert. 100 moles that contains 4 mo
Explain oxidation Oxidation : Oxidation is defined as the interaction among oxygen molecules and all the dissimilar substances they may contact, from metal to living tissue. T
The various types of polarization processes are: a) Electronic polarization b) Ionic Polarization c) Orientation Polarization, and d) Space charge Polarization
What are the main sources of electrical resistance in a metal? The factors that affect the electrical resistance of a metal are impurity, temperature and alloying. The free mea
prove that work is a path function
Check in and checkout procedure a. Location of Key: Enquire from the technicians as to who opens the laboratory. Does the lab staff have to take the keys from the office or
Requirement of potable water
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