Comment on 'experimental evidence for excess entropy discontinuities in glass-forming solutions' [J. Chem. Phys. 136, 074515 (2012)]

摘要

This Comment presents thermograms which demonstrate that glass transition temperatures, T_gs, the change in heat capacity, ΔC_p, and the quasi-invariant point, (C′_g,T′_g), of citric-acid/H_2O are not consistent with those reported by Lienhard This raises doubts about validity of their estimation of the excess mixing entropy difference, ΔS~l _(mix)-ΔS~g _(mix), at the T_g.