•Describe the consequences of performing a kinetics study with too wide a temperature range for a diffusion dominated failure mechanism? What errors would be caused?

Air enters a counter-flow drier at 70˚C dry bulb temperature and 20˚C dew point temperature. Air leaves the drier at 40˚C and 60% relative humidity. The initial moisture content of the product is 82% (wet basis). The amount of air moving through the drier is 2000kg of dry air per hour. The mass flow rate of the product is 10kg dry solid per hour. What is the final moisture content of the dried product in wet basis?

Write a 2 to 3 page, (750-1000 word) expanded definition of a technical or scientific term, plus works cited page.

For Example topics can be:

Environmental Science:

What is Global Warming?

What is Acid Rain?

What is biodegradation?

Engineering:

What is a suspension bridge?

What is a hydraulic lift?

What are fiber optics?

Digital Technology:

What is Virtual Reality?

What is a hologram?

What is facial recognition technology?

What are biometrics?

List three reasons why an experimentally measured reduction potential would not equal the theoretical reduction potential.

How to make Catalyst?

Example of making Gama Al₂O₃/Ni/Cu/Fe,

How we know the composition, and how many Ni/Cu/Fe is given to make the catalyst??

A continuous fractionating column operating at atmospheric pressure, is to be designed to separate a mixture containing 40% carbon disulfide (CS₂ ) and 60% Carbon tetra chloride (CCl₄ ) into an overhead product containing 95% w.w CS₂ and 97% CCl₄ waste. (All weight percent).

Complete the material balance around the column? All results should be in mole and mole percent (Not in weight percent).

1. Draw a process flowchart

2. Write balances around the column based on CS₂ and CCl₄.

3. Determine the expected mole fraction and mole flow rate for all streams; feed, top and bottom of the column.

from the DePrestier Chart at 50 psi , the temperature in deg. F pure propane boils at is

Write short notes on ASTM & TBP distillation?

1.What do you see as the long term impacts of damaging species on the ecosystems of North America? Explain. Give examples.  

2.Do wildlife diseases impact endangered species? Explain. Give examples. 

3.Are traps lethal or non-lethal devices? Explain your answer, use specific examples. 

4.How important is the experience of the practitioner in using traps or snares to catch a coyote? Explain. 

Problem 1.

Derive an expression for the mixing entropy ∆Smix of a ternary system.

Simplify your result, writing it as the total number of particles N times a purely intensive function of the mole fractions of all three components.

Humid air at 70.0 °C and 1.00 atm with 2.00 °C of superheat is fed to a condenser. Gas and liquid streams leave the condenser in equilibrium at 15.0 °C and 1.00 atm.

Use material balances to determine the following quantities for a basis of 100.0 mol of warm, humid air fed to the condenser.

In a power plant based on a simple Rankine cycle, steam enters the turbine at 15 MPa and 900°C. The condenser pressure is 5 kPa. The turbine operates adiabatically and has an isentropic efficiency of 85%, and the pump also operates adiabatically and has an isentropic efficiency of 80%. Determine

1. the work required to pump the water to the boiler in kJ/kg of water flowing, and

2. the enthalpy of the water leaving the pump.

Ethylene glycol at 40 degree C flows along a heated vertical plate L = 0.5 m long and is maintained at a uniform temperature of 80 degree C. Determine the minimum flow velocity below which the effect of free convection on heat transfer becomes more than 5 percent. (For ethylene glycol take Pr = 50.)