Quiz 1-solutions

# Quiz 1-solutions - Version 035 Quiz 1 fakhreddine(51650...

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Version 035 – Quiz 1 – fakhreddine – (51650) 1 This print-out should have 4 questions. Multiple-choice questions may continue on the next column or page – Fnd all choices before answering. 001 10.0 points Which of the following would lower the va- por pressure of a sample of water in a closed container? I) decreasing the size of the container II) lowering the container temperature III) removing water from the container 1. I, II and III 2. I only 3. I and II only 4. III only 5. I and III only 6. II only correct 7. II and III only Explanation: The size of a container and the amount of the volatile species contained in it are irrel- evant to vapor pressure. Temperature is a strong determinant vapor pressure. 002 10.0 points Consider the speciFc heats H 2 O(s) = 2.09 J/g · C, H 2 O ( ) = 4.18 J/g · C, and H 2 O(g) = 2.03 J/g · C. The heat of fusion for water is 334 J/g and its heat of vaporization is 2260 J/g. Calculate the amount of heat required to convert 83 g

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## This note was uploaded on 07/25/2011 for the course CH 302 taught by Professor Rowland during the Spring '10 term at UT Arlington.

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Quiz 1-solutions - Version 035 Quiz 1 fakhreddine(51650...

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