Recent content by RougeSun

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    Undergrad KE of Gas Molecules: n, KbT, U, and 3/2R

    K=R/(Avagadro's Num), so 3/2*R/(Avagadro's Num)*T=3/2nRT getting rid of the same constants I get 1/(Avagadro's Num)=n
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    Undergrad KE of Gas Molecules: n, KbT, U, and 3/2R

    I know that KE=3/2KbT, but doesn't the KE of gas molecules also equal U=3/2nRT? When do I use which? And also for the second equation if it is for a monoatomic gas, n=1, why isn't the n deleted?
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    Do I Need a Battery for a Positive Redox Reaction?

    For a reaction where the electric potential is positive, does there need to be something to provide voltage for the reaction to occur? Let's say E= 1.34V for the reaction. Do I need to connect the electrode terminals to a battery to provide 1.34V?
    • RougeSun
    • Thread
    • Reaction Redox Redox reaction Voltage
    • Replies: 1
    • Forum: Chemistry
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    Find their velocities after the collision

    Since it's an ellastic collision, momentum is conserved. a) can be found with conservation of momentum.
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    Undergrad Why Do Protons Not Absorb Light Rays?

    Protons can absorb photons too but it's easier for an electron to absorb it because it can move around
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    Calculate Initial Velocity of Object Thrown Vertically

    I think using Vf^2=Vi^2 + 2ad would be better..Since the highest point is 30 that means at that point v equals 0.
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    Charging Time for RC Circuit with Capacitor and Resistor

    Ahh..okay. But wouldn't Vo be 0?
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    Charging Time for RC Circuit with Capacitor and Resistor

    Homework Statement A 1234. pF capacitor and a 5.6 × 106 ohm resistor are connected in series to 78. volts EMF. Approximately how long does it take the capacitor to become almost fully charged? Homework Equations Vf=Vo(1-e^(-t/RC)) The Attempt at a Solution I'm not sure if the...