quiz10f09 - 1. Property of a system that determines if the...

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CHEMISTRY 443.10 Fall, 2008 (08F) QUIZ 1 September 12, 2008 NAME: ARTHUR Score:______/10 [Show all work clearly. All numbers without decimals may be assumed to be infinitely precise. Be sure to show proper units in every case.] 1. (5 points) A glass bulb of volume 0.136 liter contains 0.7031 grams of a gas. The pressure is measured to be 759.0 Torr and the temperature is 99.5 ° C. What is the molar mass of this gas? Calculate the number of moles using the ideal gas law: mol K mol K J m Pa K mol K J L m L Torr Pa Torr RT PV n 3 1 1 3 4 5 1 1 3 3 10 437 . 4 ) 7 . 372 ( 3144349 . 8 ) 10 36 . 1 ( 10 011 . 1 ) 15 . 273 5 . 99 ( 3144349 . 8 ) 1000 / 1 )( 136 . 0 )( 10 5062 . 7 / 1 ( 0 . 759 × = × × = + × = = Then, dividing the mass of the gas by this number of moles gives the molar mass: 1 3 . 159 10 437 . 4 7031 . 0 = × = = mol g mol g n wt M 2. (5 points) In the table, indicate the proper best definition of each word or phrase in column A by inserting the proper number from column B: Column A Column B 4. Adiabatic
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Unformatted text preview: 1. Property of a system that determines if the system is in thermal equilibrium throughout 8. Diathermal 2. Property that is independent of the “size” of the system 2. Intensive property 3. Fundamental constant of the universe, given as 8.3144349 J K-1 mol-1 in SI units 6. Surroundings 4. Describing a system in which the parts cannot exchange energy to achieve thermal equilibrium 1. Temperature 5. Brief statement of the zeroth law of thermodynamics 6. Everything in the universe except the system under study 7. Property of a system that contains a large number of particles 8. Describing a multi-part system in which the parts exchange thermal energy through their boundaries 9. A modification of the ideal gas law 10. A property that is proportional to the “size” of the system...
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