Rank from highest to lowest, if possible, the quantities below for N particles a

Question

Rank from highest to lowest, if possible, the quantities below for N particles at T 300K of the 4 substances: deuterium (D2), helium (He), xenon (Xe), and gold (Au). Deuterium molecules are comprised of deuterium atoms, D, which have an atomic mass of 2.01g/mol. Helium and xenon gases have molar masses of 4.00g/mol and 131.3g/mol respectively. Gold has an atomic mass of 196.g/mol ed.(35 points total) a) thermal energy b) translational KE C) Vrms d) heat e) heat capacity f) mass specific heat g) molar specific heat

Explanation / Answer

Given elements cannot be ranked since all given properties depends only on temperature but temperature is constant T= 300K.

b) for a given temperature, all gas molecules - no matter what their mass - have the same average translational kinetic energy, namely (3/2)kT hence we cannot rank on the basis of translational kinetic energy

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