Which gas has molecules with the greatest average molecular speed at 25°c?

Question

Which gas has molecules with the greatest average molecular speed at 25°c?

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Thành Đạt 4 years 2021-07-31T18:05:04+00:00 1 Answers 30 views 0

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  1. RobertKer
    0
    2021-07-31T18:06:59+00:00
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    Answer: the options to the questions are

    a. 1.0 moles of N2

    b.0.5 moles of New

    c.0.2 moles of CO2

    d.2 moles of He

    Answer D

    Explanation:

    The average molecular speed v of gas is given by =√(8RT,/πM)

    From the equation it can be seen that substance with lowest molar mass has the highest velocity has He is the answer

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