Q. 55.0( 2 Votes )
Which of the foll A. hydrogen
D. carbon dioxide
Rms speed at given temperature is given as
where R=gas constant whose value is 8.31 J/mol K.
T=temperature of gas.
M= molar mass of molecule of gas
Therefore, at a given temperature rms speed of gas is inversely proportional to square root of molar mass of molecule of that gas.
Out of the four-option molar mass of hydrogen molecule is least
i.e. 2 amu. So rms speed of hydrogen will be maximum.
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