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What is the structure of Nafion 117 and how does it impact t...

What is the structure of Nafion 117 and how does it impact transport? What is the importance of membrane hydration? How does the article "Water Uptake by and Transport Through Nation 117 Membranes" by Thomas A. Zawodzinski, Jr.,* Charles Derouin, Susan Radzinski, Ruth J. Sher...

1.) (1.5 point) Using the data table below for the following...

1.) (1.5 point) Using the data table below for the following liquids, use the free-volume theory we discussed in class to determine the AG'. Is there any relationship between their molecular structure and interactions and AG'? For generality, you may assume that 8=1. You can also assume an averag...

Answer questions below: Transport in semiconductors can occ...

Answer questions below: Transport in semiconductors can occur under numerous different mechanisms. The challenge in Materials Science and Engineering is to optimize the inter-connected properties in order to maximize desired functionality. Describe materials considerations discussed by Kramer a...

1.) (1 point) We discussed in class that Newtoniar fluids ha...

1.) (1 point) We discussed in class that Newtoniar fluids have a shear stress (z) that is a linear function of the shear rate (Y) with the proportionality constant termed the viscosity Examples of common Newtonian fluids are water, gases, and most organic solvents However, many fluids do not foll...

Air is compressed from 1 atm and 20°C to 32 psi to pump ...

Air is compressed from 1 atm and 20°C to 32 psi to pump up a car tire. You are to consider the pressure in the tire to be infinitesimally less than 32 psi and the exit condition into the tire as stagnant (the last little bit of air to be added) so that you consider the maximum effort required an...

1. (3 points) The Fourier series solution for the heat condu...

1. (3 points) The Fourier series solution for the heat conduction equation of has the formal solution of - when we assume that T(x,0) is a constant (i.e. T(0,0) = T(x,0)=T(L,0). If we maintain one end of our rod at a constant temperature T1 and the other at T2, we can redefine the boundary con...

1. (3 points) Unlike doped silicon, organic semiconductors h...

1. (3 points) Unlike doped silicon, organic semiconductors have incredibly high molar absorbtivities and therefore, much of the incident light can be absorbed over very short path lengths (100s of nm instead of microns). But, these materials typically have a much lower free carrier mobility, which...

1. (2 points) Consider the diffusion of species a from sour...

1. (2 points) Consider the diffusion of species a from source located at the top of alarge tank of length (i.e. at 0, xa=xxo). The lower surface of the tank made of catalytic material such that a is converted to at the surface at rate proportional to the concentration of :- right above the sur...

Answer questions below: - What is convection? - What is ...

Answer questions below: - What is convection? - What is radiative energy transfer? How is it different from Fourier’s Law of heat transfer? - What are the different types of boundary conditions? - How does the shape of the system impact the spatial distribution of the state variable?...

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