{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Quiz 1 - Solution-2011 - ChE 2033 Chemical Engineering...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
ChE 2033 Chemical Engineering Fundamentals Fall 2011 Quiz 1, Friday September 2, 2011 Closed Notes/Closed Book NAME:_____________________________________________ 1 1. I bought a pack of plain white paper that contains 500 sheets of paper, each 8.5 in. x 11 in. On the package it says the paper is 75 grams/m 2 . A) (5 pts) What is the mass (in grams) of each sheet? B) (5 pts) How much does the pack weigh in lb f ? Solution: Part A) convert area of 1 sheet of paper from in 2 to m 2 (3 pts) Area = 8.5 in ( ) 11 in ( ) = 93.5 in 2 ( ) 0.0254 m in 2 = 0.0603 m 2 Obtain mass of each sheet in g: (2 pts) mass = 0.0603 m 2 ( ) 75 g m 2 = 4.52 g Calculate weight for 500 sheets in lb f . (take off 2 pts if they have lbm instead of lbf) Weight = m * g g c = 500 sheets ( ) 4.52 g sheet 1lb m 453 g 32.174 ft s 2 32.174 lb m ft s 2 lb f = 4.99 lb f 2. (10 pts) Find the units for C in the following equation The terms in the equations have the following units: A (ft/s), B (ft/ft), R (ft), D(ft 2 /s 3 ), E (ft 2 /s) A = B 1/2 *C*R 2/3 Solution: C = A B 1/ 2 * R 2/ 3 = ft / s ( ) ft / ft ( ) 1/ 2 * ft ( ) 2/ 3 = ft 1/ 3 s Grading Rubric: - 7 pts for showing work
Image of page 1

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

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern