A sample contains an equal number of atoms of the two naturally occurring isotopes of…
CHEMISTRY · Subjective · CBSE · Chemistry · Some Basic Concepts of Chemistry · Some Basic Concepts of Chemistry
Problem
A sample contains an equal number of atoms of the two naturally occurring isotopes of neon, ²⁰Ne and ²²Ne, at 298 K. Calculate the percentage difference between their root-mean-square speeds, defined as
%difference=(vheavyvlight−vheavy)×100%.
(Molar masses: ²⁰Ne = 19.99 g mol⁻¹, ²²Ne = 21.99 g mol⁻¹; R = 8.314 J mol⁻¹ K⁻¹.)