In the United States, Cancer Alley is a stretch of land along the Mississippi River between New Orleans and Baton Rouge, Louisiana. Many petrochemical companies process oil into plastics and fertilizer, often releasing toxins into the environment. Residents in this area have high rates of cancer, lower incomes, and are predominantly African-American This scenario is an example of which of the following (choose one):
Group of answer choices
Environmental determinism because this location is the ideal location for chemical plants due to its proximity to the Gulf of Mexico.
Environmental possibilism because the low income residents have the possibility to create positive change through industrial development.
Environmental (in)justice because one portion of the population is disproportionately affected by the negative impacts of industrialization.
Sustainable development because the petrochemical companies have developed this river corridor in order to produce fertilizer that will increase agricultural opportunities across the country and the world.
In: Other
In: Other
Consider the net radiant heat flux between an object and its surroundings as given by
qrad,net = ǫ σ ( T4 − T ∞4 ) ( 1 ) where ǫ is the emissivity, σ is the Stefan-Boltzmann constant (5.670374419×10−8 in
W ), T is the object’s temperature and T is the surrounding (ambient) temperature. m2K4 ∞
1-a) Linearize qrad,net in terms of ǫ, T, and T∞, use deviation variables and call this expression qL′ .
1-b) Compute the value for qrad,net with ǫ = 0.9, T = 700 K, and T ∞ = 300 K.
1-c) Using both the linearized and nonlinear equation, compute the numeric change
in qrad,net (in watts) for each of the following cases:
(a) ǫ increases by 0.01.
(b) T increases by 1 K.
(c) T∞ increases by 1 K.
(d) T increases by 5 K.
(e) T∞ increases by 5 K.
(f) ǫ increases by 0.01 and T increases by 5 K and T∞ increases by 5 K.
(g) Using the linearized model, find the range of T that causes a ± 5% change in qrad,net.
(h) Using the nonlinear model, find the range of T that causes a ± 5% change in qrad,net.
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Q3) Answer by “true” or “false” to the following
statements:
1. dry basis: All the gases resulting from combustion process
including the water vapor.
2. Theoretical air (or theoretical oxygen): The minimum amount of
air (or oxygen) required to
be brought into the process for complete combustion
3. The limiting material comes out together with, or perhaps
separately from, the product, and
sometimes can be used again.
4. The extent of reaction, ξ, is based on a particular
stoichiometric equation, and denotes how
much reaction occurs
5. Open Systems mean that material neither enters nor leaves the
vessel
Chemical engineering principles
Within 20 minutes
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Graphite mineral
1. Discuss it's origin, chemistry and economical importance (
including any other important characteristics)
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An enzyme acts as a catalyst in the fermentation of A to form product R. An aqueous feed stream containing the enzyme and compound A flows into a CSTR at 25 L/min, and the initial concentration of A is 2 mol*L-1 . Determine the volume of the CSTR (in Liters, expressed to the nearest integer ) needed to achieve 98% conversion of reactant A. You may assume that the enzyme concentration and volumetric flowrates are constant. The maximum rate of destruction of the substrate is 0.4 mol/(L min). When the substrate concentration is 0.5 mol/L, the rate of destruction of the substrate is 0.2 mol/(L min), i.e. half of the maximum rate.
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An ideal gas with Cp = 2.5R at 298 K and 5.00 bar is adiabatically throttled to 1.00 bar. If the flow rate of gas is 1.71 mol/s, and the surroundings are at a temperature of 3°C, what is the rate of lost work, in kW? Please give your answer to 3 SF, and be very careful with units.
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1. As water has a higher __________, we can assume that land will heat and cool faster than water.
2. Which of the following is NOT a reason for our mild weather and climate here in Orange County?
a) Warm Ocean Current off our coast
B) High Pressure
c) California Current
D) Our location near the Pacific Ocean
What is the main source of energy for a Hurricane?___________
T/F Hail and lightning are common in the Initial/Cumulus stage of a Thunderstorm.
In the northern hemisphere both Hurricanes and Tornadoes spin_______. clockwise or counter-clockwise
T/F A monsoon is associated with both high rainfall totals and alternating periods of drought.
Hurricane Katrina holds the record for the most destructive Hurricane in US History based upon which criteria?
Loss of lives Financial Loss Wind Speed
T/F El Nino is considered a type of storm.
What do we call a Cumulus cloud when it produces heavy rain?
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although we know almost nothing about the culture that created them the abstract ----- of Cycladic culture appears extremely sophisticated for 5,000 years of work
a. equestrian portraits
b. animal deities
c.lion hunts
d. female nude figures
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The earthquakes from transform plate boundaries are;
1, shallow and weak
2, intermediate depth and intermediate strength
3, deep and strong
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Describe the difference between gasohol, E-85 and B-20. On what type of devices can they be used , In what states are they use, What requirements must be met for their use.
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In: Other
a. The bubble point temperature of a liquid mixture with a molar composition of 35.0 mol% n-hexane and 65.0 mol% n-heptane at 1.00 atm and the composition (mole fractions) of the vapor in equilibrium with this mixture.
Find bubble point
Find x Hexane
Find x Heptane
b. The dew-point temperature of a gas mixture with a molar composition of 30.0% n-hexane, 15.0% n-heptane, and 55.0% air at 1.00 atm and the composition (mole fractions) of the liquid in equilibrium with this mixture.
Find dew point
Find x Hexane
Find x Heptane
In: Other
In: Other
I need in-length solutions to part A and B
A. Contrast the classification systems that are used in the International Union for the Conservation of Nature’s Red List, Canada’s Species At Risk Act (SARA), and the Manitoba Endangered Species and Ecosystems Act (MESEA). How do these support biodiversity conservation?
B. Describe how the peregrine falcon and polar bear are classified by each of the agencies in question 2. Why might there be differences in classification and how does this in itself benefit species conservation?
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