exam 1 2-5-07

exam 1 2-5-07 - Chemistry 1B, Mid Term Exam 1 Feb 5, 2007...

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Chemistry 1B, Mid Term Exam 1 Feb 5, 2007 Professor Watts Instructions: Your exam booklet should contain 25 multiple choice questions. Check your booklet to be sure that it includes all 25 questions and return it to a proctor if a replacement is needed. The 25 multiple choice questions are each worth 4 points credit for a correct answer. Questions must be answered on the scan tron exam sheet that is provided with the exam. Fill out the bubbles for the first 25 questions on the answer sheet. Be sure to mark your perm number in the bubbles on the sheet and to print your name and perm number on the scan tron . The version of your exam must be marked on the scan tron answer sheet to assure that it is graded correctly. The exam version of this booklet is VERSION B. When you have completed your exam, turn in only the scan tron answer sheet. Keep the exam booklet with questions for your own records. An information sheet that contains formulas and values of constants are included in your test booklet YOUR EXAM IS VERSION B Mark B on the scan tron in the section called “test form”
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Formulas and Constants, Mid-term Exam 1 () h c h irr i f rev P V ext P P V V T T T eous spon T q S S T H G V V nR S T q S T nC H T nC E V P w T nC q T nC q T nC q V P E H PV E H w q E = > Δ Δ Δ = Δ = Δ = Δ Δ = Δ Δ = Δ Δ = Δ = Δ = Δ = Δ + Δ = Δ Δ + Δ = Δ + = Δ η tan 0 ln 1 23 23 10 022 . 6 / 10 38 . 1 184 . 4 1 101 1 0821 . 0 31 . 8 × = × = = = = = mol N K J k J cal J atm L mol K atm L R mol K J R B
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Mid-term Exam 1 - Chem 1B - Version B – 2-5-07 1. When a plastic bottle of liquid nitrogen at 77 K comes into contact with air at 298 K the nitrogen boils and forms nitrogen vapor at 77 K. The work for this process is a) Equal to q b) 0 c) Equal to minus q d) Positive e) Negative 2. Combustion of methane in air at constant temperature and pressure leads to the formation of carbon dioxide and water vapor according to the following equation: CH 4 (g) + 2 O 2 (g) CO 2 (g) + 2 H 2 O (g) How is the value of Δ E for this reaction related to its Δ H value? a)
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This note was uploaded on 08/06/2008 for the course CHEM 1B taught by Professor Watts during the Winter '08 term at UCSB.

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exam 1 2-5-07 - Chemistry 1B, Mid Term Exam 1 Feb 5, 2007...

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