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17 February, 21:29

Calculate the kinetic energy of co2 at 254 k.

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  1. 17 February, 23:33
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    You need to take into account the equations for the average speed and kinetic energy of gases.

    Kinetic energy, KE = [1/2] m * v^2

    Average speed, v = √[3RT/m] = > v^2 = 3RT / m

    => KE = [1/2]m * 3RT/m = [3/2] RT

    R = 8,314 J/mol*K

    T = 254 K

    => KE = [3/2] * (8,314J/mol*K) * (254K) = 3167.6 J/mol

    Answer: 3167.6 J/mol
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