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14 August, 12:07

The temperature of the carbon dioxide atmosphere near the surface of venus is 475°c. calculate the average kinetic energy per mole of carbon dioxide molecules on venus. 2520 j/mol 5920 j/mol 4150 j/mol 5920 kj/mol 9330 j/mol

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  1. 14 August, 13:14
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    Answer: 9330 j/mol

    The temperature of the gas is 475 ° Celcius which is equal to: 475 + 273 = 748 °K. The formula for kinetic energy of individual atoms would be

    K = 3/2 * kB * T

    If kB is 1.38 * 10^-23 J/K and 1 mol is made from 6.02*10^23 molecule, then the kinetic energy of 1 mol CO2 would be:

    K = 3/2 * kB * T

    K = 3/2 * 1.38 * 10^-23 * 748 * 6.02 * 10^23 = 9324 J/mol
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