exam 3 - 1 Chem 115a Exam 3-sample Print Name Last First...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 1 Chem 115a Exam 3-sample Print Name Last, First Thursday October 28, 2010 Last 3 digits SID # Professors Hanna Reisler/Susumu Takahashi,TA Name/Lab Time: Questions Points Score Grader 1 9 2 11 3 13 4 22 5 15 6 15 7 15 Total 100 INSTRUCTIONS 1. You must show your work to receive credit. 2. If necessary, please continue your solutions on the back of the preceding page (facing you). 3. YOU MUST Use black or blue ink. (No pencil, no whiteout.) 4. There are 9 problems on 9 pages. Please count them before you begin. Please Sign Below: I certify that I have observed all the rules of Academic Integrity while taking this examination. Signature 2 1. (9 pts) (1) The reaction 2 N I 3 (s) -> 2 I 2 (s) +3 N 2 (g) is expected to: a. produce a large amount of P-V work b. violate the 1 st law of thermodynamics c. produce electrical work d. have a E close to zero e. none of the above (2) Of the following properties: H, E, T, P, q, w a. only H and E are state functions b. only w is not a state function c. both q and w are not state functions d. all of them are state functions e. none of the above (3) The density of mercury is 13.6 g/cm 3 , the density of liquid water is 1.0 g/cm 3 and 1 atm = 760 torr. A column of water that would exert a pressure of 1 atm on an object beneath it should be approximately: a. 1 meter high b. 10 meter high c. 100 meter high d. 1000 meter high e. none of the above 3 2. (11 pts) (i) (4 pts) Under STP conditions what is the density of O 2 gas? (a) Not enough information is given to solve this. (b) 1.31 g/L (c) 1.43 g/L (d) 0.999 g/L (iii) (7pts) When 60.00 g methane gas (CH 4 ) is placed in a 1.00-L vessel, the pressure is measured to be 130.00 atm. Calculate the temperature of the gas using a) ideal gas law b) van der Waals equation. van der Waals constants for methane gas are a=2.253 (atm b) van der Waals equation....
View Full Document

This document was uploaded on 12/08/2010.

Page1 / 10

exam 3 - 1 Chem 115a Exam 3-sample Print Name Last First...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online