Water flow steadily from a large closed tank. The deflection in mercury manometer is 1 inches or ( 0.0254-m) and viscous effects are negligible.

1). If the tank of water is maintained at 8.50 c(celsius) and the ambient air temperature is 34 c (celsius), determine the volume flow rate in (m^3/s) leaving the 3-inch or (0.0762-m) diameter outlet from the tank, the pressure differential (delta P) between the pitot tube entrance (across from the discharge outlet) & the fluid pressure in the 1-ft or (0.3048-m) diameter discharge chamber in (kpa), and the gauge pressure of the air in (kpag) in the space above the water in the tank

2). A nozzle with a throat diameter of 3.850-mm is placed on the tank discharge to slow down the outlet flow velocity to 11 nanoliters/minute (nL/min) with a nozzle exit pressure of 3.4 kpa, determine the new pressure above the tank water in (kpa) and the new mass flow rate in (kg/s) of the water.

3). For part 2, estimate the new mercury deflection for the pressure differential (delta P) between the pitot tube entrance (across from the discharge outlet) & the fluid pressure in the 1-ft or (0.3048-m) diameter discharge chamber in (kpa)

Instead of assuming that the volume of a condensed phase is constant when pressure is applied, assume only that the compressibility is constant.

1. Show that when the pressure is changed isothermally by ΔP, G changes to

G'=G+VmΔP(1-12κTΔP)

2. Assess the error in assuming that a solid is incompressible by applying this expression to the compression of copper when ΔP = 500 atm. (For copper at 25℃, κT = 0.8*10^-6 atm^-1 and ρ = 8.93 g/cm³.)

The gas that comes out of a gasoline stabilizer has the following composition by volume: C₃H₈ 8%, CH₄ 78%, C₂H₆ 10%, and C₄H₁₀ 4%. This gas that comes out at 90 ° F and 16 psi of absolute pressure is supplied at the rate of 70,000 ft³ / h to a gas conversion plant, where the following reactions take place:

CnH2n + 2 + n H2O n CO + (2n + 1) H2

CO + H2O CO2 + H2.

CnH2n + 2 gases are converted to 95% and 90% of CO that also reacts, depending on the reactions. Make a process diagram and calculate:

a) Average molecular weight of the gas coming out of stabilizer.

b) Weight of the gas supplied to the conversion plant in lb / h.

c) Weight of the H2 that leaves the converter plate in lb / h.

d) Composition in volume of the gases that leave the converter plant.

Thank you!

A grounwate has been contaminated with carbon tetrachloride at a level of 250 ppm (by mass). Assuming equilibrium with the air in the soil right above the groundwater table, calculate the concentration of carbon tetrachloride in the air space. Give your answer in ppm (by volume). The Henry's Law constant for carbon tetrachloride is 3.0 kPa/ (gmol/m^3) and the total air pressure in the soild is 1,013 kPa.

3) Respond the following:

a)Describe a Schottky Defect in Li2O

b)Describe a Frenkel Defect in NiO

c)How would you expect the number of vacancies per unit volume to change in a metal as the temperature increases?

d)Explain why the strength of a simple thermoplastic polymer, such as a polyvinyl chloride, is expected to be very low compared to a thermoset polymer.

e) Would it be easier to crystalize polytetrafluoroethylene (teflon) (C2F4) or polystyrene (C8H8)? Why?

A distillation column receives a feed that is 40 mole % n-pentane and 60 mole % n-hexane. The feed is saturated liquid at 2,500 lbmol/hr. The column is at 1 atm. A distillate that is 97 mole % n-pentane is desired. A total condenser is used. The reflux is a saturated liquid. The external reflux ratio is L₀/D = 3. The bottoms from the partial reboiler is 2 mole % n-pentane. Determine the intersection (x_q, y_q) of the q-line with the operating line, the number of equilibrium trays, and the minimum reflux ratio.

Data: Vapor pressure, P^sat, ln P^sat = A ? B/(T + C), where P^sat is in kPa and T is in K.

n-pentane: A = 13.9778, B = 2554.6, C = ?36.2529

n-hexane: A = 14.0568, B = 2825.42, C = ?42.7089

3. Briefly describe and list the steps involved in Lean Continuous Improvement methodology.

The reaction of methylacetate with water is shown below:

CH3CO2CH3 (aq) + H2O (l) ? CH3CO2H (aq) + CH3OH (aq)

The rate of the reaction is given by the following rate law: rate = k[H+][CH3CO2CH3] Consider one liter of solution that is 0.15 M CH3CO2CH3 (aq) and 0.015 M H+ (aq) at 25?C (a) For each change listed below state whether the rate of reaction increase, decreases or remains the same. Why?

(i) methylacetate (CH3CO2CH3) is added to the solution

2. The temperature is lowered

3 Water is added to the solution

For those 3 cases does the K increase or remain the same?

Using the following precursors Li2CO3, ZrO2, Al2O3, La2O3, synthesize the following material Li6.25Al0.25La3Zr2O12.

(a.) How many grams off each precursor will be needed to make 3, 5 and 10 grams of Li6.4Al0.25La3Zr2O12?

(b.) What about 3 grams of Li6.4Al.20La3Zr1.4O12

why did texans convene in 1875 to write yet another constitution?

Materials Science and Engineering: How would you determine whether to use the ionic radius or the covalent/atomic radius to calculate the unit cell edge length and density for materials with the zincblende structure? Please explain your answer.

1.

a) Calculate the moles of water produced when 0.1 mole of HCI reacts with 0.1 mole of NaOH. ( HCI + NaOH ---> H₂O + NaCI )

b) If 0.5 moles of KOH are mixed with 1 mole of HNO₃ how many moles of H₂O are produced? ( KOH + HNO₃ ---> KNO₃ + H₂O )

c) What would be the resulting temperature if 10 mL of water at 30 degrees Celsius is mixed with 100 mL of water at 90 degrees Celsius? Use the formula q=ms?t

d) One gallon of water at 0 degrees Celsius is mixed with 1 liter of water at 99.9 degrees Celsius. Using the formula q=ms?t calculate the resulting temperature in Fahrenheit and Kelvin.

4000 m3/d of wastewater with a total suspended solids (TSS) concentration of 200 mg/L is subjected to treatment by coagulation and flocculation followed by sedimentation. The ferric chloride dose is 25 mg/L and the TSS removal is 90%. Estimate the daily volume of sludge produced if the sludge has a specific gravity of 1.05 and moisture content of 92.5%. The following reaction is applicable: 2FeCl3 + 3Ca(OH)2 ? 2Fe(OH)3 + 3CaCl2

Provide comparison for liquid mixing expriments using different impellers and baffles and discuss how this affect the liquid and the power curves and power requirements.