1s. What is fair trade? Your answer should explain what the concept means (according to civil society organizations, not Donald Trump), and identify at least one of its limitations. 200 words

You purchased a ton of wet hops (75% water by weight), and need to dry them to 10% water by weight.

How much energy is required to drive off the water?

How much wood (i.e., mass) do you need to burn (if you ran a 1900's Oast -- hop kiln) in order to drive off the water? You may assume 100% energy efficiency, and the heat of combustion of wood to be Hc = 16,300 kJ/kg

Asample of a food material weighing 10 kg is initially at 450% moisture content dry basis. It is dried to 10% moisture content wet basis. How much water is removed from the sample per kg of dry solids?

Why is it important to study the kinetics of catalytic steam

reforming of methane although the reaction proceeds close to

equilibrium? Discuss the possibility of transport limitations in view of the process conditions

SOC-M2d: Evaluate the impacts of culture on interactions and how changes within society occur.

List at least three norms, folkways, and mores of American society.

How significant are these within the current American culture? If members from a past generation (e.g., your grandparents) made this list, would it look similar or different? In the same post, answer the following questions:

What do these differences or similarities imply about the social changes within our society?

How might these differ between an ideal and real society

1) The diffusion coefficient of the protein BSA in water at 25°C is 6.7 10^-11 m²s^-1. Calculate the hydrodynamic volume of this protein assuming it can be regarded as a sphere

Vh =

2) The molecular weight of BSA is 66,430 g/mol, and its partial specific volume (the inverse of the density) is 0.734 cm³/g. What is the volume of one “dry” molecule of BSA? (i.e. the unhydrated protein)

V =

A water sample obtained from the neigborhood pond was analyzed for dissolved oxygen content. A volume of 300 mL, with temperature 21 degrees Celsius, was analyzed using the Wrinkler method shown in the simulated lab material. It took 15.0 mL of 0.01 mol/L Na2S2O3 solution to reach titration end point.

*Note: Na2S2O3 solution is the source of S2O32- ions for the titration reaction.

In the succeeding questions, provide the following values required. Take note of the units

a.What is the mass of the water sample?

b. milimoles of S2O32- reacted (1 mole = 1000 milimoles)

c. milimoles of Mn(OH)3

d. milimoles of dissolved oxygen

e. mg of dissolved oxygen, O2

f. ppm dissolved oxygen (mg O2 / kg water)

g. Is the water in the pond good enough for aquatic life? Why or why not?

h. Based on DO content, do you consider the water in the pond polluted?

What are the difficulties involved in stopping counterfeiting of drugs? Give brief descriptions of various current measures that are being used/proposed by manufactures to resolve these.

3. If a diffuser does no net work and has no net heat transfer, it is ineffective.

a. true

b. false

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4. In a heat exchanger, the means of heat transfer is/are _____

a. Conduction

b. Convection

c. Radiation

d. A and B

e. B and C

f. A and C

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5. Conservation of mass applies to steady systems, but not to unsteady systems.

a. TRUE

b. FALSE

c. There is not enough information to give a definitive answer

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Some theoretical questions in Thermodynamics require your clarification and explanations.

Are the molar extinction coefficient and cross-section of an absorption related to the probability of absorption?

I have struggled to find a formal definition of cross-section of absorption; from what I've gathered, its best defined as 'the intensity of absorption'.

Wikipedia's formal definition of the molar extinction coefficient is 'how strongly a species absorbs EMR at a given wavelength, per molar concentration'.

So how are the molar extinction coefficient and cross-section different? I presume that whilst the molar extinction coefficient remains constant for a given wavelength across all concentrations, the cross-section differs for a given wavelength with changing concentration.

Is either the molar extinction coefficient or cross-section of an absorption equal to the probability that a single species absorbs a photon at any one point in time?

A gas mixture contains 20.0 mole% H2O(v) and 80.0 mole% N2. The gas temperature and absolute pressure at the start of each of the three parts of this problem are 71°C and 700.0 mm Hg. Ideal gas behavior may be assumed in every part of this problem.

a. If some of the gas mixture is put in a cylinder and slowly cooled at constant pressure, at what temperature would the first drop of liquid form? °C

b. If a 30.0 liter flask is filled with some of the gas mixture and sealed, and 30.0% of the water vapor in the flask is condensed, what volume would be occupied by the liquid water? cm3 What would be the system temperature? °C

c. If the gas mixture is stored in a rigid-walled cylinder and a low-pressure weather front moves in and the barometric (atmosopheric) pressure drops from 760 mm Hg to 730.0 mm of Hg, what would be the new gauge pressure in the cylinder? mm Hg

What is a life cycle analysis diagram of a reusable and insulated water bottle?

Air at 90.0°C and 1.0 atm (absolute) contains 7.0 mole% water. A continuous stream of this air enters a compressor–condenser, in which the temperature is lowered to 18.6°C and the pressure is raised to 2.90 atm. The air leaving the condenser is then heated isobarically to 90.0°C. Calculate the fraction of water that is condensed from the air, the relative humidity of the outlet air at 90.0°C, and the ratio (m3 outlet air at 90.0°C)/(m3 feed air) at 90.0°C.

Find

Fraction of water condensed

Relative humidity of the outlet air

Volume ratio of outlet to inlet air: