A separator divides a process stream into three phases: a liquid organic stream, a liquid aqueous stream, and a gas stream. The feed stream contains three components, all of which are present to some extent in the separated streams. The composition and flow rate of the feed stream are known. All the streams will be at the same temperature and pressure. The phase equilibria for the three phases is available. How many design variables need to be specified in order to calculate the output stream compositions and flow rates

Scientists have identified that the rate of deaths in a country can be correlated to the density of the population (#people/area), the average age and weight of the population, the average work commute and he net mass flow rate of people in & out of the country.

(a) Apply dimensional analysis to this problem and find the minimal number of dimensionless groups needed to describe and understand the available data.

(b) Discuss the findings and what conclusion may be drawn out of the analysis.

Describe how you would determine, using the van der Waals equation of state, the temperature of a real gas mixture of 3 gasses (A,B and C) given the pressure P in the container, the mass of each gas m_A, m_B, m_C, and the volume v of the container. You also have access to the critical properties (T_CA, T_CB, T_CC, P_CA, P_CB, P_CC) and molar masses (M_A, M_B, M_C,) of each gas. Use these variables and list all equations and steps in order with enough detail so someone else who has no knowledge of this course could solve the problem using your steps.

Consider the following experiment with 100 grams of a pure substance in a variable-volume cylindrical container. The base of the cylinder is 100 cm². The height of the piston from the base of the cylinder is denoted by h (cm). Therefore, the internal volume of the cylinder in cm³ is 100h. The cylinder height is slowly changed and the following data is gathered at equilibrium.

a) find the specific density of each phase

b) find the height in case 3

c) state whether the following statement is true or false: The pressures in all three cases are equal.

The gas phase reaction           2A + B →2C

is   carried   out   isothermally   and   isobarically.   The   reaction   is    first    order    in    A    and    first order in B. The feed is equal molar in A and B and the entering concentration of A is 0.5 mol/dm3. The specific reaction rate is k = 4.0 dm3/mol s.

Write   the   rate   of   reaction,   –rA,   solely   as   a   function   of   conversion,    evaluating    all    parameters.

Describe the role of ceramic materials in nuclear power generation systems with emphasis on nuclear fuel and nuclear waste chemistry. Provide examples of reactor fuel materials, fuel fabrication processes, and reaction schemes during the power generation mode. Discuss materials handling and waste management approaches currently being used.

Describe one of the technologies used for the production of biofuel in Malaysia and discuss the suitable applications of the biofuel produced in the industry. Hint: You are required to highlight the raw material/feedstock, the technology, the chemical reaction/process involved and also to consider the effectiveness of the biofuel for the selected application in terms of its combustion and energy.

Choose one type of glucose sensor (it could be enzyme based, simple chemical base, or spectrochemical base) and briefly explain the chemical principles behind the glucose sensor. The description should be one page (300 words) in length.

3. For each case, write the degrees of freedom (F) and specify the state of the water. Calculate quality or degrees of superheat whenever applicable.

a) What is the quality of wet steam if V= 8.35 cm3 /g at 10,703 kPa? What is the specific internal Energy? What is the specific entropy?

b) What is the specific enthalpy of steam at T= 200°C and P=525 kPa?

c) What is the specific entropy of steam at 9100 kPa and 560° C?

d) What is the temperature of steam if 3600 kPa and H= 1500 kJ/kg? What is the specific entropy?

A counterflow, concentric tube heat exchanger is used to cool the lubricating oil for a large industrial gas turbine engine. The flow rate of cooling water through the inner tube (Di = 25 mm) is 0.2 kg/s, while the flow rate of oil through the outer annulus (Do = 45 mm) is 0.1 kg/s. The oil and water enter at temperatures of 100 and 30 C, respectively. How long must the tube be made if the outlet temperature of the oil is to be 60 C?

ANSWER BOTH, THEY ARE BOTH PART OF 1 QUESTION.

EC10

1a.

Halothane, C₂HBrClF₃, is a nonflammable, nonexplosive, and nonirritating gas that is commonly used as an inhalation anesthetic. The total pressure of a mixture of 16.0 g of halothane vapor and 23.5 g of oxygen gas is 840 mm Hg. What is the partial pressure of each gas?

P_halothane =  mm Hg

P_oxygen =  mm Hg

1b.

You are asked to design an air bag for a car. You know that the bag should be filled with gas with a pressure higher than atmospheric pressure, say 848 mm Hg, at a temperature of 22.0 °C. The bag has a volume of 41.5 L. What quantity of sodium azide, NaN₃, should be used to generate the required quantity of gas? The gas-producing reaction is

2 NaN₃(s) → 2 Na(s) + 3 N₂(g)

______________g

Glycerin flows parallel to a flat plate measuring 2 ft
by 2 ft with a velocity of 10 fps. Determine values for the
mean convective heat-transfer coefficient and the associated
drag force imposed on the plate for glycerin temperatures
of 30, 50, and 80F. What heat flux will result, in each
case, if the plate temperature is 50F above that of the
glycerin?

Compute E0 for the process ZnY2- + 2e- = Zn(s) + Y4- where Y4- is the completely deprotonated anion of EDTA. The formation constant for ZnY2- is 3.2x1016.

You are tasked with reducing the concentration of chemical A by 94% using a plug flow reactor. The flow you need to treat is 5,309 m3/d and chemical A is being converted to the byproduct chemical B with rate constant k=7,406 d-1. Assuming ideal operation, what volume (in L) would your reactor need to have?

Answer is 2,017