Questions
Given the values of ΔH∘rxn, ΔS∘rxn, and T below, determine ΔSuniv. Predict whether or not each...

Given the values of ΔH∘rxn, ΔS∘rxn, and T below, determine ΔSuniv.

Predict whether or not each reaction will be spontaneous.

1.
ΔH∘rxn=− 118 kJ , ΔS∘rxn= 261 J/K , T= 294 K
ΔSuniv = ??? (J/K)

2.
ΔH∘rxn= 118 kJ , ΔS∘rxn=− 261 J/K , T= 294 K .
ΔSuniv = ??? (J/K)

3.
ΔH∘rxn=− 118 kJ , ΔS∘rxn=− 261 J/K , T= 294 K .
ΔSuniv = ??? (J/K)

4.
ΔH∘rxn=− 118 kJ , ΔS∘rxn=− 261 J/K , T= 565 K .
ΔSuniv = ??? (J/K)

In: Chemistry

Hydrogen gas (H2), bromine gas (Br2) and hydrogen bromide gas (HBr) are added to a 2.0...

Hydrogen gas (H2), bromine gas (Br2) and hydrogen bromide gas (HBr) are added to a 2.0 L flask such that the concentration of each are initially 1.5 *10-2 M H2, 1.5*10-2 M Br2, and 5.0 *10-1 M HBr.

H2(g) + Br2(g) ⇌ 2HBr(g) Kc=6.25*101 at 35 degrees C.

a.) Calculate the concentration of HBr once the system reaches equilibrium.

b.) calculate delta G standard for the above reaction.

The Kc value is correct as listed

In: Chemistry

Use a well-labelled diagram with wages on the vertical axis and safety on the horizontal axis....

Use a well-labelled diagram with wages on the vertical axis and safety on the horizontal axis. Depict an iso-profit schedule for a representative firm and an isoquant for a representative worker that are in equilibrium. (a) What do each of the iso-profit schedule and the isoquant show and why are they shaped as they are? (b) What is meant by there being in equilibrium? (c) Show the impact of a government regulation that mandates or requires a level of safety that is greater than the one depicted above when the parties are in equilibrium, and assuming that the zero-profit constraint means that the firm cannot remain in business and reduce its level of profits

In: Economics

A consulting firm has two departments, Corporate and Government. Computer support is common to both departments....

A consulting firm has two departments, Corporate and Government. Computer support is common to both departments. The cost of computer support is $11.92 million. The following information is given:

Gigabytes
of Storage
Number
of Consultants
Corporate 101,600 135
Government 50,300 170

Required:

What is the cost allocation if fixed computer costs of $9.46 million are allocated on the basis of number of consultants and the remaining costs (all variable) are allocated on the basis of the number of gigabytes of storage used by the department? (Do not round intermediate calculations. Enter your answers in thousands of dollars.)

In: Accounting

A company employs plumbers to service, repair and replace pipes and other fittings for customers throughout...

A company employs plumbers to service, repair and replace pipes and other fittings for customers throughout the country. These plumbers are based at different locations. Four requests for service have been received and the company finds that four plumbers are available. The distances each of the plumbers is from the various customers are given in the following table. The company wishes to assign plumbers to customers to minimise the total distance to be travelled.

PLUMBERS

CUSTOMERS

1

2

3

4

1

25

18

23

14

2

38

15

53

23

3

15

17

41

30

4

26

28

36

29

  1. Using the Hungarian (manual) method, determine the optimal assignment of plumbers to customers in order to minimize the total distance travelled. Indicate this overall distance and show all working.                                                                              [12 marks]
  2. Write an LP formulation that could be used to solve this problem with the relevant LP software packages.       [13 marks]

[TOTAL 25 MARKS]

QUESTION 4

A manufacturer of car transmissions wants to develop a cost estimate for a customer’s order for 25 transmissions. It is estimated that the first transmission will take 100 hours of shop time and an 80% learning curve is expected. Using the learning curve tables:-

  1. How many labour-hours should the 25th transmission require?                                 [5 marks]
  2. How many labour-hours should the whole order for 25 transmission require?    [5 marks]
  3. If the labour hour rate is $50 per hour and the pricing policy of the company is to double the labour costs of the order, what is the customer price for each transmission?     [6 marks]
  4. Total Quality Management (TQM) can be an excellent quality management technique if properly implemente Discuss the obstacles associated with the implementation of TQM. [9 marks]

In: Operations Management

Juan, a17-year-old Hispanic youth, was referred to the school psychologist at the end of the first...

Juan, a17-year-old Hispanic youth, was referred to the school psychologist at the end of the first school term because of apparent academic and emotional concerns. His grades were slipping, and it looked like he might not get any credits his first term. The counselor has also explained that Juan was the driver in a fatal car wreck at the end of the previous academic year, in which his bestfriend was killed. Although Juan was hospitalized, the counselo rsaid that he insisted on going to the funeral, even though he could barely move, having suffered several broken ribs. When the psychologist met with Juan, he was initially reluctant to discuss the accident but as rapport was established, he admitted to feeling helpless, feeling fatigued because of lack of sleep, and having problems concentrating on his schoolwork. He wanted to quit school, because he did not want to be in the same class with students who blamed him for his friend’s death, and furthermore he did not see why he should plan for a future. He admitted to having vivid dreams of his friend, seeing him as if he were alive. Often he would wakeup, startled.He had no recollection of how the accident happened, as he could not remember the details, even though a witness had said that another car was involved. Although he has a girlfriend, Juan rarely feels like doing anything, and in the past few month she has preferred to be alone. Although he was very close to his deceased friend’s family(theywereinseparable), he has not seen them since the funeral. In this case, Juan is faced with the aftermath of a traumatic experience in which he was seriously injured and his friend was killed. He feels helpless because of the accidental nature of the wreck. Undoubtedly, Juan has significant survivor guilt. Faced with traumatic events of this nature, individuals react with fear, horror, or helplessness. In younger children, these feelings are often expressed in disorganized anda gitated behaviors.

IN 250 words:

Examine the diagnostic criteria and two areas on the diagnostic continuum. Identify three prominent symptoms related to comorbid or co-occurring disorders that may be present in Juan’s situation.

In: Psychology

Arsenic acid is a triprotic acid in water, ionizing in the following sequential steps: H3AsO4 +...

Arsenic acid is a triprotic acid in water, ionizing in the following sequential steps: H3AsO4 + H2O <==> H2AsO4- + H3O+ Ka 5.5 x 10^-3 H2AsO4- + H2O <==> HAsO42- + H3O+ Ka 1.7 x 10^-7 HAsO42- + H2O <==> AsO43- + H3O+ Ka 5.1 x 10^-12 What is the approximate pH of a 0.80 M H3AsO4 solution?

In: Chemistry

Using the Jean Watson Theory, what are some examples of how you can incorporate human science...

Using the Jean Watson Theory, what are some examples of how you can incorporate human science into nursing student practice?

In: Nursing

Calculate how many milliliters of 0.1 M HCL should be added to how many grams of...

Calculate how many milliliters of 0.1 M HCL should be added to how many grams of sodium acetate dihydrate (NaOAc*2H20, FM 118.06) to prepare 250 mL of 0.1 M buffer, pH=5.0

In: Chemistry

Fogerty Company makes two products—titanium Hubs and Sprockets. Data regarding the two products follow: Direct Labor-Hours...

Fogerty Company makes two products—titanium Hubs and Sprockets. Data regarding the two products follow:

Direct
Labor-Hours per Unit
Annual
Production
Hubs 0.80 12,000 units
Sprockets 0.40 48,000 units

Additional information about the company follows:

  1. Hubs require $35 in direct materials per unit, and Sprockets require $17.

  2. The direct labor wage rate is $13 per hour.

  3. Hubs require special equipment and are more complex to manufacture than Sprockets.

  4. The ABC system has the following activity cost pools:

Estimated Activity
Activity Cost Pool (Activity Measure) Overhead Cost Hubs Sprockets Total
Machine setups (number of setups) $ 20,250 125 100 225
Special processing (machine-hours) $ 148,000 3,700 0 3,700
General factory (organization-sustaining) $ 259,200 NA NA NA

Required:

1. Compute the activity rate for each activity cost pool.

2. Determine the unit product cost of each product according to the ABC system.

In: Accounting

Explain the following: How many lenses do human eyes have and what are they called? How...

Explain the following:

  • How many lenses do human eyes have and what are they called? How do they work to show us objects both close and far away? (Remember that simple glass lenses only have one focal length, unlike our eyes.) What happens as we age?
  • How do humans perceive color? Can our brains be fooled into thinking we see a color (let’s say yellow) when we are not actually looking at yellow light? (Hint: This relates to TV and computer screens.)

Discuss the eyes of other animals—let’s say cats, flies, and hummingbirds. What do these animals’ eyes do better than humans’? Why does the animal benefit from these different abilities? Does the animal lack visual abilities that humans have?

In: Physics

research about Alcohol Abuse

research about Alcohol Abuse

In: Nursing

The rights of consumers have been violated on numerous occasions by many businesses, both in Jamaica...

The rights of consumers have been violated on numerous occasions by many businesses, both in Jamaica and in the wider global space.

The Consumer Affairs Commission is one of several government agencies established to protect consumers and educate them about their rights.

Required:

Provide a robust discussion on the basic rights of a consumers and state how it can assist this group in making better decisions.                   

In: Operations Management

Differentiate between a Test Plan and a Use Case.                                   &

Differentiate between a Test Plan and a Use Case.                                                                  

In: Computer Science

In examining and analyzing the challenges faced by companies engaging in the global arena, there are...

In examining and analyzing the challenges faced by companies engaging in the global arena, there are political and social factors that could determine the successes or failures of such companies. With this in mind, discuss four (4) factors that characterise Social and Political Pressures of doing business abroad

In: Operations Management