Consider an enclosed space with a volume of 12 m x 14 m 4 m...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
Consider an enclosed space with a volume of 12 m x 14 m × 4 m that has 27 individuals smoking two cigarettes every hour. One of the gases coming out of a cigarette is formaldehyde and each cigarette may be assumed to emit 1.28 mg of formaldehyde. Conversion of formaldehyde to carbon dioxide can be assumed to be first order and the rate of reaction is 0.35 per hour. Outside (fresh) air enters the enclosed space at the rate of 475 m3 per hour. Assume the smoke becomes completely mixed with air and this smoke-mixed air leaves the enclosed space at the same rate that the fresh air enters. What is the concentration (in mg/m³) of formaldehyde in the room air at steady state? Consider an enclosed space with a volume of 12 m x 14 m × 4 m that has 27 individuals smoking two cigarettes every hour. One of the gases coming out of a cigarette is formaldehyde and each cigarette may be assumed to emit 1.28 mg of formaldehyde. Conversion of formaldehyde to carbon dioxide can be assumed to be first order and the rate of reaction is 0.35 per hour. Outside (fresh) air enters the enclosed space at the rate of 475 m3 per hour. Assume the smoke becomes completely mixed with air and this smoke-mixed air leaves the enclosed space at the same rate that the fresh air enters. What is the concentration (in mg/m³) of formaldehyde in the room air at steady state?
Expert Answer:
Related Book For
Introduction to Chemical Engineering Thermodynamics
ISBN: 978-0071247085
7th edition
Authors: J. M. Smith, H. C. Van Ness, M. M. Abbott
Posted Date:
Students also viewed these chemistry questions
-
At the start of Year 1, you buy 1000 shares of stock at $225 a share; the stock currently pays $7.35 per share in quarterly dividends. Price of the stock grows as follows: by the end of Year 1, the...
-
please help the researcher to figure out appropriate research issues from marketing and finance
-
Your show cause letter must demonstrate that you are able to identify the factors that have impeded your studies for the first year at university and, importantly, must detail how you have/will...
-
1. Construct a simple pendulum starting with 20 cm length. 2. Hang the pendulum as pictures in one of the two methods shown above. 3. Using the protractor, displace the pendulum 10 degrees from the...
-
What are the major advantages of total quality management as an approach for improving the quality of goods and services? What limitations can you think of?
-
Carbon monoxide at 25C and steam at 150C are fed to a continuous water-gas shift reactor. The product gas, which contains 40.0 mole% H2, 40.0% CO2, and the balance H2O (v), emerges at 500C at a rate...
-
When a dielectric slab completely fills the space between the plates of a parallel-plate capacitor, the magnitude of the bound charge is one-fourth the magnitude of the free charge. (a) What is the...
-
Gil makes out a $900 negotiable promissory note payable to Ben. By special indorsement, Ben transfers the note for value to Jess. By blank indorsement, Jess transfers the note for value to Pam. By...
-
4. The atomic numbers of elements, U, V, W and X are 13, 14, 16 and 17 respectively. Which one of the elements will react with oxygen to form an ionic compound? (Atomic number of oxygen is 8) X A. B....
-
Twenty-five years ago, Angelo and Fred started their own consulting company, XYZ Co. Angelo, who is 55, retired from the business on December 31, 2019. He and his wife plan to travel throughout...
-
Compound Interest Find the accumulated value and the amount of compound interest earned. 4) $1,200 at 5% compounded annually for 8 years 5) $2,940 at 3.2% compounded semiannually for 11 years 6) $900...
-
Some might argue whether humanity is evil or good. First, one must ask what is good. What is evil? You save your child from death and despair by killing another person with a will to kill them...and...
-
How could your everyday social media posts prevent you from obtaining employment or destroy your career?
-
First, we focus on liability for contracts that an agent enters on behalf of a principal. Pay close attention to the difference between express authority, implied authority, and apparent authority....
-
How will you store the data for real estate clients? Write brief statement regarding buyer's record keeping.
-
What are the political parties in Canada and their ideology
-
cost) Year (delay refund) 0 1 2 3 4 5 (1,788,333) 6 (1,421,000) 7 (1,421,000) 8 (1,421,000) 9 13 14 15 16 A.T. cash flow (int+flot. (1,421,000) 10 (1,421,000) 11 (1,421,000) 12 (1,421,000) 21 22 23...
-
Why did management adopt the new plan even though it provides a smaller expected number of exposures than the original plan recommended by the original linear programming model?
-
A concentrated binary solution containing mostly species 2 (but x2 1) is in equilibrium with a vapor phase containing both species 1 and 2. The pressure of this two-phase system is l bar, the...
-
An ideal gas initially at 600 K and 10 bar undergoes a four-step mechanically reversible cycle in a closed system. In step 12, pressure decreases isothermally to 3 bar; in step 23, pressure decreases...
-
The stream from a gas well is a mixture containing 50-mol-% methane. 10-mol-% ethane, 20-mol-% propane, and 20-mol-% n-butane. This stream is fed into a partial condenser maintained at a pressure of...
-
Complete the following sentences: A critical part of designing the deciding how to distribute the system's data. and to different Databases are a resource typically. by many- future. In designing for...
-
Meet local small business owners or representatives of as profit organizations. Find a company or organization that will host your team to produce a web site for them (nonmonetary, of course). Find...
-
More often than not, database environments in in organization reflect data structures that have been developed over a period of years, sometimes haphazardly, and that often reflect a variety of...
Study smarter with the SolutionInn App