eng-08spring-CHM2046C-e102x01-b1c

eng-08spring-CHM2046C-e102x01-b1c - University of North...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
University of North Florida NAME _____ ________________________ CHM 2046C, General Chemistry II Exam 1 Spring 2008 25 January 2008 Instructions: DO NOT BEGIN UNTIL GIVEN THE SIGNAL TO START. The time allotted for this examination is 50 minutes; nonetheless, this exam ends at 11:50 am. No extra time will be given to transfer answers to the BROWN SCANTRON. Only allowed calculators may be used on this exam. You may be asked to erase your calculator memory. The first few pages include some potentially helpful information and the periodic table. There are two parts to this exam. o For part I, write your answers on the BROWN SCANTRON. Write the exam version next to your name o For part II, show all your work for full credit. At the end of the examination, hand in the BROWN SCANTRON and partial credit portion before leaving the room. Make sure your name is on those pages. Potentially useful information 1 in = 2.54 cm (exactly) 1 lb = 453.59 g 1 L = 1.0567 qt 1 amu = 1.66053873 ×10 -24 g e = 1.60217653 × 10 -19 C ° C = 5 / 9 ( ° F – 32) ° F = 9 / 5 ° C + 32 K = ° C + 273.15 N A = 6.0221421×10 23 1 J = 1 kg·m 2 /s 2 1 Pa = 1 N/m 2 1 cal = 4.184 J (exactly) 1 atm = 101.325 kPa = 760 mm Hg (exactly) = 760 torr (exactly) = 29.921 in Hg = 14.6956 lb/in 2 = 1.01325 bar PV = nRT PV T PV T 1 1 1 2 2 2 = d P MW RT = × MW dRT P = R L atm mol K J mol K = = 008206 8314 . . P 1 = X 1 P total Standard molar volume at STP is 22.41 L KE mv = 1 2 2 P n V a V nb nRT + - = 2 2 ( ) u RT MW = 3 r r MW MW 1 2 2 1 = q = s·m· Δ T ln P H RT C vap = - + Δ ln P P H R T T vap 2 1 1 2 1 1 = - Δ
Background image of page 1

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

View Full DocumentRight Arrow Icon
NAME _____ ________________________ Exam 1 Page 3 of 8 Part I. Problems 1 – 20 are worth 3 points each. The maximum value for this part is 60 points. Each problem has ONE BEST ANSWER. Write the answers on the BROWN SCANTRON. Write the exam version on your BROWN SCANTRON next to your name. This is exam version beta-1-C . 1. What conditions are standard temperature and pressure (STP)? [a] 25 °C, 100 kPa [b] 0 K, 1 atm [c] 0 °C, 100 kPa [d] 25 °C, 1 atm [e] none of these 2. If the volume of a confined, ideal gas is quadrupled (×4) and its pressure is halved (×½), what change will be observed to the absolute temperature of the gas? [a] The volume of the gas will quadruple (×4).
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 07/10/2011 for the course CHM 2045 taught by Professor Eng during the Fall '10 term at UNF.

Page1 / 7

eng-08spring-CHM2046C-e102x01-b1c - University of North...

This preview shows document pages 1 - 3. Sign up to view the full document.

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