What will be the effect on the root mean square velocity of oxygen molecules if the temperature is doubled and oxygen molecule dissociates into atomic oxygen?
Solution
<p>As ${v_{rms}} = \sqrt {{{3RT} \over {{M_0}}}}$</p>
<p>T is doubled and oxygen molecule is dissociated into atomic oxygen molar mass is halved.</p>
<p>So, $v{'_{rms}} = \sqrt {{{3RT \times 2{T_0}} \over {{M_0}/2}}} = 2{v_{rms}}$</p>
<p>So velocity of atomic oxygen is doubled.</p>
About this question
Subject: Physics · Chapter: Thermodynamics · Topic: Zeroth and First Law
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