The internal energy per mole of an ideal gas is denoted by Eideal. The same for
a real gas obeying van der Waals equation is Ereal. Assuming the average kinetic
energy of the molecules of the two gases at the same temperature to be equal,
the correct statement for the gas at low pressure is:
Answers
Explanation:
Lithium isotope effect accompanying electrochemical intercalation of lithium into graphite
CERN Document Server
Yanase, S; Oi, T
Lithium has been electrochemically intercalated from a 1:2 (v/v) mixed solution of ethylene carbonate (EC) and methylethyl carbonate (MEC) containing 1 M LiClO sub 4 into graphite, and the lithium isotope fractionation accompanying the intercalation was observed. The lighter isotope was preferentially fractionated into graphite. The single-stage lithium isotope separation factor ranged from 1.007 to 1.025 at 25 C and depended little on the mole ratio of lithium to carbon of the lithium-graphite intercalation compounds (Li-GIC) formed. The separation factor increased with the relative content of lithium. This dependence seems consistent with the existence of an equilibrium isotope effect between the solvated lithium ion in the EC/MEC electrolyte solution and the lithium in graphite, and with the formation of a solid electrolyte interfaces on graphite at the early stage of intercalation.
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