Recent content by Riles246

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    What is the composition of the original gas mixture in mole percent?

    I don't need to use a volume since the problem states that the volume stays the same. I can set the initial and final states equal to each other by re-arranging the equation to RT/V=P/n. Then the P/n for the initial and final state of the mixtures should equal each other.
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    Mixture Composition: PV=nRT Problem,1 atm. 0.4 atm.

    The total pressure of a mixture of oxygen and hydrogen is 1 atm. The mixture is ignited and the water is removed. The remaining gas is pure hydrogen and exerts a pressure of 0.4 atm when measured at the same values of T and V as the original mixture. What was the composition of the original...
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    What is the composition of the original gas mixture in mole percent?

    Physical Chemistry Problem! The total pressure of a mixture of oxygen and hydrogen is 1 atm. The mixture is ignited and the water is removed. The remaining gas is pure hydrogen and exerts a pressure of 0.4 atm when measured at the same values of T and V as the original mixture. What was the...
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    Integral: Solve (nRT)/(V-nb)dV from Vi to Vf

    I am doing these problems to touch up on my Calc for a class I am taking (physical chem)
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    Integral: Solve (nRT)/(V-nb)dV from Vi to Vf

    Since the integral says "dV" doesn't that mean it only needs to be integrated with respect to the variable V while holding all other variables constant?
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    Calculating Total Differentials of f(x,y) and P(R,T,V) | Function Examples

    Woops. I forgot to put those in. Thanks!
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    Calculating Total Differentials of f(x,y) and P(R,T,V) | Function Examples

    for part C I assumed that A,B, and R are constants and the answer I came up with is.. [-RT(V-B)-2-AT-1/2*-2V-3)+(R/(V-B)+1/2AT-1.5V-2]
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    Calculating Total Differentials of f(x,y) and P(R,T,V) | Function Examples

    so far these are the answers I have come up with... A. [-1/((x+y2)2)]dx - [2y/((x+y2)2)]dy I started this problem by moving the denominator up but i am not sure that was the correct first move. b. (2xy/x2y)dx + (x2/x2y)dy c. I was not sure where to start with this problem.
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    Calculating Total Differentials of f(x,y) and P(R,T,V) | Function Examples

    total differentials! [SIZE="4"]a.) f = 1/(x+y2) [SIZE="4"]b.) f = ln(x2y) [SIZE="4"]c.) P = [(RT)/(V-B)]-[A/(T1/2V2)] what are the total differentials of these functions?
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    Integral: Solve (nRT)/(V-nb)dV from Vi to Vf

    [b]1. The problem statement, all variables and given integral of : (nRT)/(V-nb)dV from Vi to Vf\int ^{Vf}_{Vi} [SIZE="4"](nRT)/(V-nb)dV I am really stuck on this one! Do you need to move the denominator up first?
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    Derivative of exponential functions

    Homework Statement d/dT (e-E0/(kT)) Homework Equations d/dx(ex) = ex The Attempt at a Solution e-E0/(kT) * E0/kT2 ? Do you use the chain rule on the exponent of e?
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    Chain Rule Practice: d/dx (cos2x*sinx) = cos3x-2sin2x*cosx?

    Homework Statement d/dx (cos2x*sinx) The Attempt at a Solution Does this equal cos3x-2sin2x*cosx ?