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LIQUEFACTION OF GASES MULTIPLE CHOICE QUESTIONS (MCQ) WITH ANSWERS

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LIQUEFACTION OF GASES MULTIPLE CHOICE QUESTIONS (MCQ) WITH ANSWERS  When a gas is at a lower than its inversion temperature, cooling occurs on expansion. Thus, must bring gases below inversion temperatures before liquefaction. 1. When air expands at room temperature (a) Produce heating  (b) Cooling  produces (c) Neither heating nor cooling produces (d) None (Ans:…

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CRYOGENICS-LIQUEFACTION CLASS NOTES FOR ENGINEERING

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 CRYOGENICS-LIQUEFACTION CLASS NOTES FOR ENGINEERING    Cryogenics  involves the study of temperatures below -1500C. It is of interest to know how to produce such temperatures. These temperatures are produced by liquefaction of gases. In addition , it is of interest is know which materials are suitable at these temperatures. There are many areas of interest…