Recent content by guiromero

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    Engineering Sinusoidal response to sinusoidal input (Process control)

    This a homeawork from my graduate course. I know that a sinusoidal input affects both the amplitude and phase of the response, but I don't know how it does. I'd be really glad if someone could help. Thanks
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    Process Control (transfer function) problem

    TL;DR Summary: transfer function Hello, I have a doubt on this exercise from my post graduation course: ____________________________________________________________________________________________________ The transfer funtion of a series RL circuit is given by: Determine the answer y(t) for...
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    Wavelength for breaking a bond

    As they are different from the literature values, I suppose they are dummy. Thanks for your help.
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    Chemistry What Does Delta Gn Represent in the MIT Chemistry Course Equation?

    Hello, I have a doubt in a question from a chemistry MIT course: My attempt is attached. The formula given in the lecture is D = Do * exp(-Ea + Delta Gn)/RT However, they don't explain what Delta Gn is, I suppose it is Gibbs free energy, but as the statement doesn't give any other extra energy...
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    Chemistry Consumption rate of a reactant

    I tried the values that you mentioned but it didn't work. I think what you trying to say is the units of rate. I put M*s^-1 for M/s. I don't know if this is what you mean.
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    Chemistry Consumption rate of a reactant

    I tried to round from 0.07 to 0.075 and it didn't work. The units are ok, as k[M^-1*s^-1] * C^2[M^2] = r[M * s^-1]
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    Chemistry Consumption rate of a reactant

    Hello, I have a doubt in an exercise about rate of reaction. The statement is quoted above and the reaction scheme is the following: As the reaction is second order, I tried to apply the formula r = k*C^2. Where r = rate of reaction k = rate constant C = concentration So, I got: r =...
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    Wavelength for breaking a bond

    There's a previous question simliar to that, but I can't find the statement. However, I know the formulas are: Energy (J) = [BE * 1000] / Avogador's number Where: BE: Bond energy (KJ/mol) Wavelength (m) = (h * c) / Energy Where...
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    Wavelength for breaking a bond

    Mentor's Note: Post moved to homework forum from chemistry forum. Hello, I have a doubt in anexercise from MIT: -------------------------------------------------------------------------------------------------------------------------------------------- Calculate the maximum wavelength, λ, of...
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    Which compounds are isoelectronic with CN-?

    A molecule is isoelectronic with another if both have the same structure (positions and connectivities among atoms) and same electronic configurations, but they differ by what specific elements are at certain locations in the structure. I firstly didn't realize that NO+ has a triple bond, I...
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    Which compounds are isoelectronic with CN-?

    Thanks for your help. But in this case, it's because the due date of the lesson has already passed.
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    Which compounds are isoelectronic with CN-?

    Hello, I have a question about isoelectronicity from an MIT course: Select each compound below that is isoelectronic with CN-. a)O2 2- b)NO+ c)HF d)ClO- e)NO f)CO My guess would be CO, because it's the only compound that has a triple bond. Can anyone confirm if my guess is...
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    Understanding Bond Energies: X-Y Bond Energy Contribution

    Sorry, I forgot to correct the statement. The correct is like that: "For two bonded atoms X and Y, a small eX and large eY will result in a bond energy (E A-B) with a large __________ contribution." Where e = electronegativity
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