Microbiology: An Evolving Science (Fourth Edition)
4th Edition
ISBN: 9780393615098
Author: John W. Foster, Joan L. Slonczewski
Publisher: W. W. Norton & Company
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Chapter 14.4, Problem 1TQ
Summary Introduction
To review:
The anoxic condition of the acetate for the removal of uranium.
Introduction:
Geobacter is the anaerobic bacterial species that has the potential to oxidize organic compounds and metals. This bacterium is also known as a metal-reducing bacterium. The function of Geobacter is to remove the uranium from the contaminated environment. Anoxic refers to an environment or condition in which oxygen is either absent or is present in very less amount.
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Titanium dioxide, which is the most common white pigment in paint, can be produced from the titanium mineral, rutile, by chlorination to TiCl4, followed by oxidation to TiO2. To purify the insoluble titanium dioxide, it is washed free of soluble impurities in a continuous, countercurrent system of thickeners with water. Two hundred thousand kg/h of 99.9 wt% titanium dioxide pigment is to be produced by washing, followed by filtering and drying. The feed contains 50 wt% TiO2, 20 wt% soluble salts and 30 wt% water. The wash liquid is pure water at a flow rate equal to that of the feed on a mass flow basis
.Determine the number of ideal stages using the McCabe-Smith method.
kg solute/kg solution
kg solution/kg TiO2
0.0
0.30
0.2
0.34
0.4
0.38
0.6
0.42
The decomposition reaction of atmospheric peroxyacetylnitrate (PAN) to products
was studied, and the following rates were obtained.
Temperature, °C Rate constant, s1
0.00
5.60 x 10-6
10.0
3.20 x 10-5
20.0
1.60 x 10 4
30.0
7.60 x 10-4
43. Fit this data into the Arrhenius equation. Give the values of the following:
Slope = ( Select )
y-intercept = I Select]
Pearson coefficient (R) = [ Select ]
activation energy of this reaction in kJ/mol = [Select ]
collision frequency factor A = I Select]
The decomposition reaction of atmospheric peroxyacetylnitrate (PAN) to
products was studied, and the following rates were obtained.
Temperature, °C Rate constant, s 1
0.00
5.60 x 10-6
10.0
3.20 x 10-5
20.0
1.60 × 10-4
30.0
7.60 x 10-4
43. Fit this data into the Arrhenius equation. Give the values of the following:
Slope =
[ Select]
y-intercept =
[Select]
%3D
Chapter 14 Solutions
Microbiology: An Evolving Science (Fourth Edition)
Ch. 14.1 - Prob. 1TQCh. 14.1 - Prob. 2TQCh. 14.2 - Prob. 1TQCh. 14.2 - Prob. 2TQCh. 14.2 - Prob. 3TQCh. 14.3 - Prob. 1TQCh. 14.3 - Prob. 2TQCh. 14.3 - Prob. 3TQCh. 14.4 - Prob. 1TQCh. 14.5 - Prob. 1TQ
Ch. 14.5 - Prob. 2TQCh. 14.6 - Prob. 1TQCh. 14 - Prob. 1RQCh. 14 - Prob. 2RQCh. 14 - Prob. 3RQCh. 14 - Prob. 4RQCh. 14 - Prob. 5RQCh. 14 - Prob. 6RQCh. 14 - Prob. 7RQCh. 14 - Prob. 8RQCh. 14 - Prob. 9RQCh. 14 - Prob. 10RQCh. 14 - Prob. 11RQCh. 14 - Prob. 1TQCh. 14 - Prob. 2TQCh. 14 - Prob. 3TQCh. 14 - Prob. 4TQ
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