[Soda Ash Knowledge] Question of the Day (125) February 5, 2010
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Daily Question (125), February 5, 2010. Please hide your replies; replies that are not hidden will generally not be graded. Edited posts will not be graded. Specific hiding method: http://bbs.hcbbs.com/viewthread.php?tid=492556&highlight=%D2%FE%B2%D8 This month’s questions are taken from the book “Question Bank for Technical Workers’ On-the-Job Training – Operators in Soda Ash Production”. Electronic version of the book can be downloaded here: http://bbs.hcbbs.com/thread-13140-1-2.html I. True or False questions: 1. At a certain temperature, generally speaking, the greater the partial pressure of the gas being absorbed in the gas phase, the greater the driving force, and thus the faster its absorption rate. ( )2. Temperature has an effect on the absorption process; the lower the temperature of ammonia, carbon dioxide, and brine, the faster the absorption rate. ( )3. When two solutes that do not chemically react with each other are dissolved in the same solvent, their solubilities are greater than those when each solute is dissolved alone. ( )
1. At a certain temperature, generally speaking, the greater the partial pressure of the gas being absorbed in the gas phase, the greater the driving force, and the faster its absorption rate. (Correct) 2. Temperature has an effect on the absorption process; the lower the temperature of ammonia, carbon dioxide, and brine, the faster the absorption rate. (True) 3. When two solutes that do not chemically react with each other are dissolved in the same solvent, their solubilities are greater than those when each solute is dissolved alone. (Wrong)
1. At a certain temperature, generally speaking, the greater the partial pressure of the gas being absorbed in the gas phase, the greater the driving force, and the faster its absorption rate. (True) 2. Temperature has an effect on the absorption process; the lower the temperature of ammonia, carbon dioxide, and brine, the faster their absorption rate. (Correct) 3. When two solutes that do not chemically react with each other are dissolved in the same solvent, their solubilities are greater than those when each solute is dissolved alone. (Wrong)
1. Correct 2. Correct 3. Incorrect
1. At a certain temperature, generally speaking, the greater the partial pressure of the gas being absorbed in the gas phase, the greater the driving force, and the faster its absorption rate. (Correct) 2. Temperature has an effect on the absorption process; the lower the temperature of ammonia, carbon dioxide, and brine, the faster the absorption rate. (True) 3. When two solutes that do not chemically react with each other are dissolved in the same solvent, their solubilities are greater than those when each solute is dissolved alone. (Wrong)
1# 9067jxhuas Answer: Right, Wrong, Right