Question

What is the flash point of a mixture of 2000 barrels of oil with a flash point of 100 °F, 3000 barrels with a flash point of 80 °F and 5000 barrels with a 150 °F flash point?

Answer #1

2. An oil company sells 150-liter barrels at $100 each. The
company estimates that for a given year their projected monthly
cost will be modeled by c(x) = 0.005x3 − 2x + 5000
dollars when x barrels are sold.
a) What is the company’s revenue function when x barrels are
sold?
b) What is the company’s profit function?
c) What is the company’s marginal profit function?
d) Use marginal analysis to estimate the profit when 20 barrels
are sold

Flash distilling liquid mixture containing 40 mol % A(LK) and 60
mol % B(HK)
The flow rate (F) of the mixture supplied to the drum is 100
mol/h.
a fraction (yA; unit) of A present in a (a) vapor phase obtained
under the following design conditions.
mol % and (b) the recovery rate of B at this time (the amount of B
obtained by liquid relative to the amount B present in the raw
material); but
Calculate the % above....

An oil company operates two refineries in a certain city.
Refinery I has an output of 200, 100, and 100 barrels of low-,
medium-, and high-grade oil per day, respectively. Refinery II has
an output of 100, 200, and 600 barrels of low-, medium-, and
high-grade oil per day, respectively. The company wishes to produce
at least 1000, 1400, and 3000 barrels of low-, medium-, and
high-grade oil to fill an order. If it costs $600/day to operate
Refinery I...

4. Suppose a small oil drill has the following production
function F(K,L) =
min(4K,L)
where every drill (captial unit) takes 4 people to operate.
Output is measured in barrels.
(a) Suppose there are 10 drills in the oil field. How many
workers are needed to produce 40 barrels of oil (q=40)?
(b) Graph the isoquant curves that represent q=20, q=40, and
q=60.
(c) Setup the cost minimization problem where labor and capital are
flexible. Then find the cost function if...

A 2000 gallon tank initially contains a mixture of 750 gallons
of water and 100 gallons of salt. Water is added at a rate of 8
gallons per minute, and salt is added at a rate of 2 gallons per
minute. At the same time, a well mixed solution of "brine" is
exiting at a rate of 5 gallons per minute. What percentage of the
mixture is salt when the tank is full?

Thermodynamics Problem 12.85
Imagine a 2000 ft^(3) of an air-water vapor mixture at 14.7 psi,
90 Fahrenheit, 70 % relative humidity. Calculate the:
A. Humidity Ratio
B. Dew Point in Fahrenheit
C.Mass of Air
D. Mass of Vapor
E. Saturated Pressure for the water vapor in the mixture.
F. Vapor Pressure
G. Partial Pressure for Dry Air
H. Mass of dry air
I. Pressure for the water vapor leaving the duct in psi
J. Entalphy of saturated Vapor in BTU/lbm

Aramco (the Saudi company headquartered in Dhahran)
has 30 barrels of oil. The marginal cost of extracting a barrel is
given by MC(q)= 3q.
This means that 3 is the cost of extracting unit number one, and
6 is the cost of extracting unit number two, and 9 is the cost of
extracting unit number 3. Assume that we live in a world of two
periods.
1. How would Aramco sell those 30 units if the price P=100 in
every period...

What will be the effect on the melting point if the
product is a mixture of the ortho- and para- isomers of
bromoacetanilide?
-What information will IR spectroscopy provide about a
compound?

Given the data below for the oil market, show a supply and
demand diagram, determine the linear equations for demand and for
supply, and find the equilibrium price and quantity in the market.
Find both sets of equations for Q = f(P), and P = f(Q).
QD
P
QS
83
60
80
82
70
82
81
80
83
80
90
83
79
100
84
78
110
85
77
120
86
76
130
86
76
140
87
75
150
88
Would...

A gaseous mixture contains 4.08 g of oxygen and 2.78 g of
nitrogen. What pressure is exerted by the mixture inside a 100 mL
metal container at 150°C? Report your answer to 3 significant
figures.
A gaseous mixture contains 4.08 g of oxygen and 2.78 g of
nitrogen. What pressure is exerted by the oxygen under the same
conditions (inside a 100 mL metal container at 150°C)? Report your
answer to 3 significant figures

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