Recent content by miniradman
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Simultaneous Equations (How to test for redundancy)
Hi Ray, thanks for the response. I understand I can get equation 2 in terms of ##x_0 , x_1##, however my ultimate goal is to get ##F## in terms of ##x_0, x_1## . I'm worried that using the same equation twice will create redundancy. Would I be able to use the resulting ##y_0## and ##y_1## in...- miniradman
- Post #3
- Forum: Precalculus Mathematics Homework Help
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Simultaneous Equations (How to test for redundancy)
Homework Statement I have three equations: ## F = ρw(x_0 y^2_0 - x_1 y^2_1) + \frac{1}{2} γ w (x^2_0 - x^2_1)## ----- 1 ##y_0 = y_1 \frac{x_1}{x_0}## ----- 2 ##\frac{y^2_0}{2} + gx_0 = \frac{y^2_1}{2} + gx_1## ------ 3 Homework Equations N/A The Attempt at a Solution My goal is to have...- miniradman
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- Simultaneous equations Test
- Replies: 3
- Forum: Precalculus Mathematics Homework Help
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Electrochemical Cells (involving partial pressures and pH)
I see, I always assumed it to be dimensionless (as a ratio of concentration), since it's analogous to equilibrium constant. I'm still not sure exactly sure how to calculate ##Q##- miniradman
- Post #7
- Forum: Biology and Chemistry Homework Help
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Electrochemical Cells (involving partial pressures and pH)
Righto, I converted it to a Kpa, I just has a feeling that Bar is not a the correct unit of measurement. ## Q = \frac{1}{(51)^4(0.027)} ## ## ln|Q| = -11.9 ## ## E = 1.23 - \frac{(8.314)(298)}{(4)(96485)}(-11.9) ## ## E = 1.306V ## Quick question, why do I use the partial pressure of...- miniradman
- Post #5
- Forum: Biology and Chemistry Homework Help
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Electrochemical Cells (involving partial pressures and pH)
Ok... ## E = E^o - \frac{RT}{nF} ln| Q | ## ## Q = \frac{[H_2O]}{[O_2][H^+]^4} ## ## Q = \frac{1^2}{(0.00032)^4(0.027)} ## ## ln|Q| = 35.8 ## so: ## E = (1.23) - \frac{(8.314)(298)}{(4)(96485)} (35.8) ## ## E = (1.23) - 0.230 = 1 ## Hmm, and If I did the same with the other half cell? I...- miniradman
- Post #3
- Forum: Biology and Chemistry Homework Help
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Electrochemical Cells (involving partial pressures and pH)
Homework Statement A voltaic cell utilises the following reaction: 4 Fe2+(aq) + O2(g) + 4 H+(aq) ---> 4 Fe3+(aq) + 2 H2O(l) What is the emf of this cell when [Fe2+] = 1.3 M, [Fe3+] = 0.010 M, PO2 = 0.51 bar and the pH of the solution in the cathode is 3.5. The standard reduction potentials...- miniradman
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- Cells Electrochemical Partial Ph
- Replies: 7
- Forum: Biology and Chemistry Homework Help
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Determining an unknown Hydrocarbon X
Whoops, sorry the MW would be 56. I know that 56 does not equal 57, however I cannot think of a hydrocarbon with a MW of exactly 57.- miniradman
- Post #4
- Forum: Biology and Chemistry Homework Help
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Determining an unknown Hydrocarbon X
Homework Statement A gaseous hydrocarbon X had an approximate molecular weight of 57. It reacted with both bromine and dilute permanganate solutions. Give the structural formula of the only 3 compounds consistent with this information. X was treated with hydrogen bromide, and the resulting...- miniradman
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- Hydrocarbon
- Replies: 7
- Forum: Biology and Chemistry Homework Help
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Finding thermal conductivity with conduction and convection.
I seem to be error prone with my manual calculations, also, I needed to calculate the thermal conductivities of two other metals, at different temperatures. Which is why I wrote the program as well. I know that is wrong because it seems like I'm a whole order of magnitude from a literature...- miniradman
- Post #5
- Forum: Engineering and Comp Sci Homework Help
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Finding thermal conductivity with conduction and convection.
Hello, maadj Thanks for the response. I used an approximation method to obtain the values for Thot and Tcold. Where T2 and T3 and are temperatures close to the position of Thot and T6 and T7 are temperatures close to Tcold. I worked them out prior to using the equation I have given (did do a...- miniradman
- Post #3
- Forum: Engineering and Comp Sci Homework Help
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Finding thermal conductivity with conduction and convection.
Homework Statement Determine the thermal conductivity of a metal (assume linear heat distribution at steady-state, and well insulated), given, Thot = 96.8 Tcold = 29.5 There is also: 13.7 W being pumped in at one end. Water convecting heat away on the other end. Homework Equations...- miniradman
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- Conduction Conductivity Convection Thermal Thermal conductivity
- Replies: 5
- Forum: Engineering and Comp Sci Homework Help
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Finite Difference method to solve diffusion equation
Sorry I made a mistake with that, I was meant to say that the system reaches steady state at approximately t = 17. We haven't yet covered the Crank-Nicholson method, so I have a feeling we may have to stick with the explicit method.- miniradman
- Post #3
- Forum: Engineering and Comp Sci Homework Help
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Finite Difference method to solve diffusion equation
Homework Statement Plot the transient conduction of a material with k = 210 w/m K, Cp = 350 J/kg K, ρ = 6530 kg/m3 Where the material is a cylinder, with constant cross sectional area and is well insulated. The boundary conditions for the cylinder: T(0,t) = 330K T(l,t) = 299K...- miniradman
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- Difference Diffusion Diffusion equation Finite Finite difference Finite difference method Method
- Replies: 3
- Forum: Engineering and Comp Sci Homework Help
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Chirality of Naproxen: Explaining With CIP Rules
Well since oxygen has a higher atomic number than carbon, I assume the carboxyl group has more priority. However, intuitively, if I were to have another single aromatic ring in place of the carboxyl group, how would I go about going down the branches? Which would then be of highest priority...- miniradman
- Post #5
- Forum: Biology and Chemistry Homework Help
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Chirality of Naproxen: Explaining With CIP Rules
Homework Statement determine and explain its chirality using the CIP rule *see attached image* Homework Equations CIP rules The Attempt at a Solution Hello I've determined that the stereocenter of this molecule is at the carbon where the carboxyl group meets the two benzene...- miniradman
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- Chirality
- Replies: 4
- Forum: Biology and Chemistry Homework Help