ELEM.PRINCIPLES OF CHEMICAL PROCESSES
4th Edition
ISBN: 9781119571070
Author: FELDER
Publisher: WILEY
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Chapter 10, Problem 10.12P
. A gas leak has led to the presence of 1.00 mole% carbon monoxide in a 350-m3laboratory.4 The leak was discovered and sealed, and the laboratory is to be purged with clean air to a point at which the air contains less than the OSHA (Occupational Safety and Health Administration) specified Permissible Exposure Level (PEL) of 35 ppm (molar basis). Assume that the clean air and the air in the laboratory are at the same temperature and pressure and that the laboratory air is perfectly mixed throughout the purging process,
- Let tr(h) be the time required for the specified reduction in the carbon monoxide concentration.
Write a differential CO mole balance, letting A equal the total moles of gas in the room (assume constant), the mole fraction of CO in the room air, and
Integrate the balance to derive an equation for trin terms of
- If the volumetric flow rate is 700 m3/h (representing a turnover of two room volumes per hour), how long will the purge take? What would the volumetric flow rate have to be to cut the purge time in half?
- Give several reasons why it might not be safe to resume work in the laboratory after the calculated purge time has elapsed. What precautionary steps would you advise taking at this point?
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Chapter 10 Solutions
ELEM.PRINCIPLES OF CHEMICAL PROCESSES
Ch. 10 - A solution containing hydrogen peroxide with a...Ch. 10 - Prob. 10.2PCh. 10 - Prob. 10.3PCh. 10 - Prob. 10.4PCh. 10 - Prob. 10.5PCh. 10 - Prob. 10.6PCh. 10 - Prob. 10.7PCh. 10 - Water is added at varying rates to a 300-liter...Ch. 10 - Prob. 10.9PCh. 10 - 10.10. A ventilation system has been designed for...
Ch. 10 - Prob. 10.11PCh. 10 - . A gas leak has led to the presence of 1.00 mole%...Ch. 10 - Prob. 10.13PCh. 10 - Prob. 10.14PCh. 10 - Prob. 10.15PCh. 10 - Prob. 10.16PCh. 10 - Prob. 10.17PCh. 10 - 10.18. A 40.0-ft3oxygen tent initially contains...Ch. 10 - Prob. 10.19PCh. 10 - Prob. 10.20PCh. 10 - Prob. 10.21PCh. 10 - Prob. 10.22PCh. 10 - Prob. 10.23PCh. 10 - A liquid-phase chemical reaction with...Ch. 10 - A kettle containing 3.00 liters of water at a...Ch. 10 - Prob. 10.27PCh. 10 - An iron bar 2.00 cm × 3.00 cm × 10.0 cm at a...Ch. 10 - A steam coil is immersed in a stirred tank....Ch. 10 - Prob. 10.30PCh. 10 - Prob. 10.31PCh. 10 - Prob. 10.32PCh. 10 - 10.33. A 2000-liter tank initially contains 400...Ch. 10 - Prob. 10.34PCh. 10 - Prob. 10.35PCh. 10 - Prob. 10.36P
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