You and your lab partner are studying the rate of a reaction, A
+ B --> C. You make measurements of the initial rate under the
following conditions:
| Experiment | [A] (M) | [B] (M) | Rate (M/s) |
|---|---|---|---|
| 1 | 1.4 | 1.2 | |
| 2 | 2.8 | 1.2 | |
(a) Which of the following reactant concentrations could you use
for experiment 3 in order to determine the rate law, assuming that
the rate law is of the form, Rate = k [A]x
[B]y? Choose all correct possibilities.
[A] = 7.0 and [B] = 1.2[A] = 4.2 and [B] = 1.2[A] = 2.8 and [B] = 3.6[A] = 5.6 and [B] = 1.2[A] = 1.4 and [B] = 2.4[A] = 1.4 and [B] = 3.6[A] = 2.8 and [B] = 2.4[A] = 2.8 and [B] = 1.2
(b) For a reaction of the form, A + B + C --> Products, the
following observations are made: tripling the concentration of A
increases the rate by a factor of 3, doubling the concentration of
B has no effect on the rate, and doubling the concentration of C
increases the rate by a factor of 4. Select the correct rate law
for this reaction from the choices below.
Rate = k[A][B][C]Rate =
k[A][C] Rate = k[A]2
[C]Rate = k[A][C]2Rate = k[A]2
[C]2Rate = k[A]3 [C]Rate =
k[A][C]3
(c) By what factor will the rate of the reaction described in part
(b) above change if the concentrations of A, B, and C are all
halved (reduced by a factor of 2)?
The rate will be the original rate multiplied by a factor
of .
In: Chemistry
You have a 200 Ω resistor, a 0.400-H inductor. Suppose you take the resistor and inductor and make a series circuit with a voltage source that has voltage amplitude 30.0V and an angular frequency of 250 rad/s.
Parts A, B, C
For this R-L circuit graph v, vR, and vL versus t for t = 0 to t =
50.0 ms. The current is given by i=Icosωt, so v=Vcos(ωt+ϕ).
Part D
What are v, vR, and vL at t = 20.0ms?
Enter your answers numerically separated by commas.
v,vR,vL v , v R , v L = ?, ?, ? V
Part F
What are v, vR, and vL at t = 40.0ms?
Enter your answers numerically separated by commas.
v,vR,vL v , v R , v L = ?, ?, ? V
In: Physics
You will take on the role of the benevolent social planner. Remember the sole objective of a benevolent social planner is to maximize total surplus. Below are two lists of numbers. The top list represents the opportunity costs of a number of firms that supply an unspecified commodity. The bottom list includes the willingness to pay of a number of buyers who desire to purchase this unspecified commodity. Using these lists answer the following questions.
Sellers and their Opportunity Costs:
Trampled by Turtles 7
Dispatch 8
Valerie June 7
Daft Punk 2
JoshRitter 3
Delfonics 5
Yola 2
Los Lobos 5
Che Apalache 4
Buyers and their Willingness to Pay:
Dolly 4
Loretta 8
Crystal 10
Ernest 5
Dwight 7
Rosanne 10
Ronnie 7
Clint 5
Tracy 9
1. How many exchanges should occur? (1 point)
2. What is the total surplus of each exchange that occurs? Give the seller’s letter, the buyer’s letter, and the total surplus of this pair’s exchange. (1 point)
3. What is total surplus for the entire market? (1 point)
4. Assume that a price ceiling is imposed upon this market. No unit will be permitted to trade for a price above $4.50.
a. What is quantity supplied at this price? (1 point)
b. What is quantity demanded at this price? (1 point)
c. How many exchanges occur? (1 point)
5. Assume that the government has decided to impose a $3 tax per unit, to be paid by the sellers. A seller who does not sell a unit pays no tax. Therefore, the tax is like a cost increase of $3. A seller’s cost will really be $3 above the listed opportunity cost.
a. How many exchanges will occur? (1 point)
b. What is the total surplus of each exchange that occurs? Give the seller’s number, the buyer’s number, and the total surplus of this pair’s exchange. (1 point)
c. What is total surplus for the entire market? (1 point)
d. Is there any deadweight loss? If so, what is it? (1 point)
In: Economics
In: Economics
2.2 Explain and comment on factors related to organizational culture and innovation that might influence a company.
In: Economics
Write a recursive program in C++ to compute the determinant of an NxN matrix, A. Your program should ask the user to enter the value of N, followed by the path of a file where the entries of the matrix could be found. It should then read the file, compute the determinant and return its value. Compile and run your program.
In: Computer Science
1. Recall a work task, hobby, or other activity that you perform regularly.
2. name the activity and list sequentially the actions you do to complete the activity
3. Describe the main differences between doing your activity as you perform it regularly and any variations to those steps you would make to improve your activity.
4. Reflect on the complexity of your list and the number of steps needed to complete the activity:
In: Civil Engineering
Compute the probability distribution, expectation, and variance of the following random variable:
- Multipliying the result of rolling two dice.
In: Math
In: Other
In: Computer Science
When should a company prepare budgets? What are the advantages of preparing budgets?
In: Accounting
4 Fe(s) + 3 O2(g) → 2 Fe2O3(s), ΔH = -1652 kJ
(a) How much heat is released when 4.03 mol iron is reacted with
excess O2?
. kJ
(b) How much heat is released when 1.47 mol
Fe2O3 is produced?
. kJ
(c) How much heat is released when 1.17 g iron is reacted with
excess O2?
kJ
(d) How much heat is released when 12.70 g Fe and 2.24 g
O2 are reacted?
kJ
In: Chemistry
Case Study
This case study is about the nuclear disaster of Chernobyl in 1984. It covers all the ethical mistakes and aspects involved in the occurring of the disaster. The ethical dilemmas, responsibilities, whistle blowing & cultural norms of engineers are discussed in it.
The Chernobyl disaster was a catastrophic nuclear accident that occurred on 26 April, 1986 at 1:23:45 AM at the No. 4 nuclear reactor in the Chernobyl Nuclear Power Plant, near the city of Pripyat in the north of the Ukrainian SSR. It is one of only two nuclear disasters rated as INES 7, the maximum severity classification.
The accident started during a safety test on a common Soviet reactor, the RBMK type.
A very large amount of energy was suddenly released vaporizing superheated cooling water and rupturing the reactor pressure vessel in a highly destructive steam explosion. This was immediately followed by an open-air reactor core fire. The core fire released considerable airborne radioactive contamination for about nine days which precipitated onto parts of the USSR and Western Europe, before being finally contained on 4 May 1986. The radioactive contamination dispersed over this period was approximately the same amount as that released during the initial explosion. Thirty-six hours after the accident, a 10-kilometre exclusion zone was created, with the rapid evacuation of 49,000 people, primarily from Pripyat, and this was increased from 10 to 30 km shortly after when a further 68,000 persons were evacuated, including from the town of Chernobyl itself.
From years of research we know what technically went wrong in Chernobyl disaster. Write few things, what “Ethically” went wrong while keeping in mind following points.
Question number 1:
Question Number 2:
In: Other
In: Psychology
3. The partnership has four partners A 2% partner,
individual calendar year. B 51% partner, corporation, 6/30 fiscal
year. C 30% partner, corporation, 6/30 fiscal; D 17% corporation,
6/30 fiscal. What taxable years may the partnership use under the
following alternative situations?
(a) What taxable year(s) may the partnership use?
(b) Suppose C and D use the 4/30 fiscal year instead.
(c) Suppose A is 22%, B is 31%, and C and D use the 4/30 fiscal
year.
In: Accounting