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a) Derive Boltzmann relation s=kblnw Discuss its significance.
note s=entropy kb=boltzmen constent
b) Show that the Fermi energy at absolute zero is given by:
Ef=h^2/2m(3N/8PIV)^2/3
c) Compute the Fermi energy and the corresponding Fermi temperature of aluminium
(trivalent metal) using the following data:
P=2.67X10^3Kgm^-3 and M(al)=26.98X10^-3 Kg
note here p is density

I have a checkbox with each date in calendar
Now i wand to display selected checkbox date and Text box with every date.

If 1000 bytes make 1KB, How many bytes are in 1 GB

i have a .dat file(15 MB) which is basically like text file which has delimiter( | ) separated values(like comma,pipe separated values).I would like this to write these records in an excel file .I am using the Spreadsheet::WriteExcel module and it works fine for small number of records.But I want to generate a single excel file for more than 38000 records.In this case it does not work because of memory management issues and i have to do it using a single excel workbook.Can you suggest some better method.

A 25 Kbps satellite link has a propagation delay of 400 ms. The transmitter employs the "go back n ARQ" scheme with n set to 10. Assuming that each frame is 100 bytes long, what is the maximum data rate possible?

A) 5 Kbps
B) 10 Kbps
C) 15 Kbps
D) 20 Kbps

77.44E04 is equivalent

a 20 kbps device is connected to a processor. the interrupt overhead is 10 microseconds. what is the minimum performance achieved when interrupt initiated data transfer is used instead of programmed i/o?

Im wanting a program that goes on a website searches for a certain phrase and then tells me if that phrase is there. E.g goes on a local news site searches for my school district on list of closed schools, and if it is there tells me. I would prefer to do this in Java because I have an android tablet, and would like mobile access.

I badly need help in this can't even get past letter a:

Given the gas phase reaction: A + 2 B → R + S as first order with respect to each reactant and conducted in a constant volume batch reactor at 400K. The feed contains some inerts and initial total pressure is 4 atm. The rate of change of total pressure (P) with time in terms of P is given by:
dP/dt = 0.04[P-2.7][3-P] in atm per min
a) Determine the mole % composition of the feed.
b) What are the values and units of kA and kB in mol, Lit, min?
c) What is the half-life of A (min) and what is the total pressure at this time?
d) If the reaction is conducted at 400K and 4 atm constant pressure using the stoichiometric amounts of A and B in the feed and no inerts, what will be the new half-life of A, and what will be the % increase in total volume at this half-life?

What is the pH of a buffer that consist of 0.20M NH3 and 0.10 M NH4Cl ? PKB of NH3= 4.75.

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