Describe the purpose and general makeup of a blowout preventer.

Consider the pair of reactions in which ethylene (C₂H₄) is oxidized either to ethylene oxide (C₂H₄O, desired) or to carbon dioxide (undesired).

(hint: assume 100 moles feed entering in reactor)

                                    C₂H₄ + ½ O₂   → C₂H₄O

                                    C₂H₄ + 3 O₂ → 2 CO₂ + 2 H₂O

The feed to the reactor contains 25% mole ethylene and 75% mole oxygen. The conversion of ethylene is 75% and the selectivity of ethylene oxide over carbon dioxide is 12.

a) determine ξ₁ and ξ₂ (18 mole, 0.75mole)

b) Calculate the molar composition (mole fractions) of the outlet stream. (0.069, 0.7, 0.198, 0.016, 0.016)

b) Calculate the fractional yield of ethylene oxide.(0.72)

When is a blowout said to occur? What are the consequences?

Why complete combustion reaction is good for automobiles and environment?

A liquid flows down an inclined plane surface in a steady, full developed laminar film of thickness h. Simplify the Navier-Stokes equations to model this flow field. Obtain expressions for the liquid velocity profile, the shear stress distribution, the volumetric flow rate, and the average velocity. Calculate the volumetric flow rate in a film of water h=1 mm thick, flowing on a surface b=1 m wide, inclined at 15 degrees to the horizontal.

describe the mechanisms by which pollutants are distributed and concentratedaround the globe in certain regions

. The reaction of 2O3(g) → 3O2(g) has the experimental rate: rate = k[O3]2 [O2]—1. The following mechanism has been proposed: 1. O3 O2 + O fast, equilibrium 2. O + O3 → 2 O2 slow (A) Identify any intermediates. (B) What is the rate law predicted by this mechanism? (C) Is the rate law predicted by the mechanism consistent with the experimental rate law? (D) How would adding a catalyst effect this reaction?

3. Estimate the values of Compressibility factor, enthalpy and entropy for Benzene and cyclohexane if it compressed from 650 K and 60 bar to 500 K and 110 bar.

What kind of materials requirements for handle cooking pot? why?

Discuss biological phosphorous removal process.  

Derive an expression of the van Deemter equation that shows how to calculate the minimum value of H based upon the values for A, B and C and not flow rate. (Assume the C terms are combined into one C term).

The following heat engines produce power of 95,000 kW. Determine in each case the rates at which heat is absorbed from the hot reservoir and discarded to the cold reservoir.

a. A carnot engine operates between heat reservoir at 750K and 300K.

b. A practical engine operates between the same heat reservoirs but with a thermal efficiency n = 0.35

*Please show are the formulas and steps how to do this problem please.

A furnace wall is constructed of an inner layer of 10 mm of material A with k_A = 20W/mK, 20 mm of material B with k_B = 1.5 W/mK, a middle layer of 30 mm of material C with k_C=3.0 W/mK) , and an outer layer of 40 mm of material D (k_D=300 W/mK) . The temperature of inside wall is 1000 K and the temperature of outer layer is 350 K. The temperature and convection coefficient of hot air inside furnace are 1100 K and 100 W/m²K, while the temperature and convection heat transfer coefficient of the ambient air outside the furnace are 300K and 25 W/m²K.

1) Calculate the heat flux transferred from the furnace through the wall to surrounding.

2)Calculate the temperature at the interface between material B and material C

3) If material B is changed to material E with k_E= 15W/mK with a thickness of 15mm.Calculate the heat loss from furnace to surrounding. Comment on the effectiveness of material B and material E.

(a) What is the total volume of gaseous products, measured at 350°C and 689 torr, when an automobile engine burns 103 g of C8H18 (a typical component of gasoline)? L (b) For part (a), the source of O2 is air, which is about 78.0% N2, 21.0% O2, and 1.0% Ar by volume. Assuming all the O2 reacts, but no N2 or Ar does, what is the total volume of gaseous exhaust?