Home/ Questions/The capacitor in the figure (figure 1)is initially uncharged. the switch is closed at t=0.
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lizawr
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Asked: 2022-04-11T19:09:44+00:00 In:

The capacitor in the figure (figure 1)is initially uncharged. the switch is closed at t=0.

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Calculate the energy for one mole of photons (an einstein) for light absorbed at 7.00 × 102 nm.

Relevant knowledge

An electronic element which stores electrical energy within the form of an electrical field. A field of electricity is a vector field that is surrounded by charged particles and creates an attractive or repelling force on the other particles charged. The electric field can be seen towards the direction of the force that is imposed upon positively charged particles. In capacitors, the electric field is directed between the plates, from positive towards negative.

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  1. Best Answer

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  2. Given:

    Lambda = 700 Nm = 7.00*10-7.m

    First, find energy from 1 photon

    use:

    E = h*c/lambda

    =(6.626*10^-34 J.s)*(3.0*10^8 m/s)/(7.00*10^-7 m)

    = 2.84*10-19J

    This is the energy of 1 photon

    Energy of 1 mole = energy of 1 photon

    = 2.84*10^-19*6.022*10^23 J/mol

    = 1.71*10^5 J/mol

    = 1.71*10^2 KJ/mol

    Answer: 171 KJ/mol

    • 22

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