HEAT CAPACITIES OF SOME ALKYL ACETATES AT 295-323 K

摘要

Molar heat capacities C-p,C-m at constant atmospheric pressure have been determined with a typical uncertainty of about 0.3% for eight liquid alkyl acetates H(CH2)(n)OCOCH3 (n = 6-12, 14), over the temperature range 295-323 K. The C-p,C-m values were found to be a linear function of temperature. A comparison of experimental data with those predicted by the group additivity method demonstrated a rather limited capability of the additivity scheme to predict correctly the C-p,C-m values for higher (n > 10) homologues in the series. [References: 10]