1) Consider a situation where 5 grams of chemical A, with Kaw=0.5 and Kd=15.5 (LW/kg Soil), is spilled into a closed 30-liter flask containing 15-liter of water and 15-liter of air and 150 grams of soil. Calculate the equilibrium concentration of chemical A in water, air and soil media ( ). Also calculate the final mass of chemical A in air, water, and soil media.

Benzene and toluene form an ideal solution. At 25 oC, the vapor pressure of pure benzene is 100 torr, and the vapor pressure of pure toluene is 30.0 torr. A solution is prepared of 1.0 mol benzene and 2.0 mol toluene. Some of the solution evaporates in a closed system. What is the mole fraction of benzene in the vapor?

A. 0.33

B. 0.43

C. 0.53

D. 0.63

E. 0.73

A closed, rigid tank contains a two-phase liquid–vapor mixture of Refrigerant 22 initially at -20°C with a quality of 47.50%. Energy transfer by heat into the tank occurs until the refrigerant is at a final pressure of 6 bar.

a) Determine the final temperature, in °C.

b) If the final state is in the superheated vapor region, at what temperature, in °C, does the tank contain only saturated vapor?

Question 1

1. Distinguish between private saving, public saving, and national saving. ( 3 marks)
2. Explain the impact of an increase in the government budget surplus on private saving, public saving, and national saving.
3. Suppose that in a closed economy the GDP is equal to $11,000, Taxes are equal to $2,500, Consumption equals $7,000, and Government purchases equal $3,000. Calculate private saving, public saving, and national saving?

Suppose the investment is very sensitive to the interest rate.That is, the function I(r), used to derive the IS curve, is very steep.

1. Graphically derive the IS curve in the closed economy. What can you say about the steepness IS curve?

2. In this context, which policy do you think is likely to be more effective? Fiscal policy or monetary policy? (Hint: make use of your answer to question 1)

Topic: Animal Internal Transport Systems

1. Compare a plant: would you describe the overall vascular tissue as an open or closed system? Xylem and Phloem?

2. What molecules are moved in an animal’s circulatory system? Compare and contrast animals and plants for molecules transported internally.

3. Describe the different types of force used to move fluids in plant internal transport systems and animal internal transport systems.

4.1 Suppose that interest rates in Australia rise relative to those in other countries.

(a) How will this policy affect real GDP in the short run if Australia is a closed economy? (b) How will this policy affect real GDP in the short run if Australia is an open economy? (c) How will your answer to part b change if interest rates also rise in the countries that are the major trading partners of Australia?

A 100 F capacitor and a 225  resistor are connected in series with a 75.0 V battery. The switch is closed and the capacitor begins to charge.  

a)When does the capacitor hold 15.0 % of its maximum charge? Express your answer in milliseconds.

b)What is the voltage across the resistor at this same time?

Please state your answers as clear as possible and show all the steps and formulas used. Thank you!!!

In the Musculoskeletal System subsection of the Surgery section in your CPT book, it discusses the following types of treatment: closed treatment, open treatment, and percutaneous skeletal fixation. What do each of these terms means? What are the differences between each of these types of treatment? Choose one of the types of treatment and give an example of a procedure that would be performed using that method, along with the code that would be assigned for the example.