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

a. Give three properties of a bulk material that change significantly when you have a nanoparticle of the same material. State in what way the properties will change.

b. Sketch the unit cell for a faced-centered-cubic metal crystal (FCC), and sketch the unit cell for a body-centered-cubic metal crystal (BCC)

c. Sketch the arrangement of atoms in a {111} facet and then in a {100} facet on the surface of a nanoparticle.

d. Explain briefly how to force a nanocube to form instead of a nanosphere

A German fuel blend called Reichkraftskoff is made up of 50% motor benzole (75% benzene, 15% toluene, 10% xylene), 25% tetralin (C₁₀H₁₂) and 25% industrial alcohol (80% ethanol, 20% methanol). After combustion in excess air, a stack gas containing 9.13%CO₂ and 1.83%CO is obtained. Calculate a) % excess air; b) Complete Orsat analysis of the stack gas.

Coal tar fuels are liquid obtained by blending coal tar distillation products such as carbolic oil, naphthalene oil, creosote oil, anthracene oil and medium pitch. A sample of elemental analysis shows 85.9% C, 6.3% H, 1.2%S, 5.5% O and 1.1%N. If this fuel is burned in excess air at 30℃ and 755 mmHg with 90% RH, it produces a burner gas containing 10.64% CO₂, 3.19% CO and 0.64%H₂. Assuming negligible N and S. Calculate a) %excess air; b) Complete Orsat analysis of the burner gas; c) m³ stack gas.

define/describe the basic chemical manufacturing industry.

Biodiesel from a palm oil has an approximate formula of C_xH_yO_z. Excess air is supplied at 30℃, 100kPa and 85%RH. The exhaust gas leaves at 250℃ and 750mmHg with a complete analysis of 12.08%CO₂, 0.25%CO, 0.55%H₂, 2.12%O₂, 71.17%N₂ and the rest is H₂O. Find the formula of biodiesel.

What are the main sources of alternative, or renewable, energy?

100 g of nitrogen gas reacts with hydrogen gas to produce 40g of ammonia gas according to the equation given below:

N2(g) + 3H2(g) ⇋ 2NH3(g)

Calculate the percentage yield of ammonia