Quiz 4 - Version 079 – Quiz 4 – Laude – (53755) 1...

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Unformatted text preview: Version 079 – Quiz 4 – Laude – (53755) 1 This print-out should have 8 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 5.0 points If a 10 L gaseous system at 400 K and 4 atm is heated to 800 K and allowed to expand to 20 L, what will the new pressure of the system be? 1. 1 atm 2. 8 atm 3. 2 atm 4. 4 atm correct 5. 16 atm Explanation: Doubling the temperature from 400 K to 800 K will double the pressure and doubling the volume from 10 L to 20 L will halve the pressure, resulting in no net change in pres- sure. P 1 V 1 T 1 = P 2 V 2 T 2 P 2 = P 1 V 1 T 2 V 2 T 1 = 4 · 10 · 800 20 · 400 = 4 atm 002 5.0 points Choose the compound below that does not exhibit delocalization. 1. C 6 H 6 2. CO 3 2- 3. CO 2 correct 4. NO 3- 5. O 3 Explanation: Ozone, benzene, nitrate and carbonate are all famous examples or delocalization. Car- bon dioxide does not exhibit delocalization....
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This note was uploaded on 06/06/2010 for the course CH 301 taught by Professor Fakhreddine/lyon during the Fall '07 term at University of Texas at Austin.

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Quiz 4 - Version 079 – Quiz 4 – Laude – (53755) 1...

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