SpringMidtermPracticeProblems1

# SpringMidtermPracticeProblems1 - Practice Midterm Pchem...

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Practice Midterm Pchem 161A. Work in Small Groups. This is more material than will be in the in class test. A substantial portion of the in-class test will be taken from this practice midterm. 1) What are extensive and intensive properties. (1 point each 5 points total) Circle the extensive variables: a) Volume b) Pressure c) Temperature d) Number of particles e) Energy 2) Circle which of the below are state functions. (1 point each 6pts total) a) Volume b) Pressure c) Temperature d) Work e) Heat f) Energy 3) Starting with the ideal gas equation, show how you can calculate the molar mass (grams/mole) of a gas from a knowledge of its density at STP (5 points): 4) Describe a reversible and irreversible transformations. Use the words equilibrium, state and path in your answer. (5 points)

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5) Derive the expression for work of an ideal gas under the following conditions use: (21 points) a. Isobaric Expansion (constant Pressure) (5 points) b. Isochoric expansion (constant Volume) (3 points) c. Free expansion (no external pressure) (3 points) d. Isothermal Expansion (constant Temperature) (15 points) 6) If an ideal gas has a volume of 3.0 liters at degrees 26.85 Celsius, what is its volume at 326.85 degrees Celsius at 1 Atmosphere of pressure? (5 points) How many moles are in the gas? (3 points)
7) Two types of transformations that are very convenient for thermodynamic transformations are isothermal and adiabatic. a)

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## This note was uploaded on 09/08/2010 for the course CHEM 160 at San Jose State.

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SpringMidtermPracticeProblems1 - Practice Midterm Pchem...

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