Indicate which of the following statements is \( \mathrm{P}^{122} \...

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Indicate which of the following statements is
\( \mathrm{P}^{122} \) correct?

W
(1) At constant temperature, the \( \mathrm{KE} \) of all gas molecules will be the same
(2) At constant temperature, the KE of different molecules will be different
(3) At constant temperature, the \( \mathrm{KE} \) will be greater for heavier gas molecules '
(4) At constant temperature, the KE will be less for heavier gas molecules
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