HEAT-CAPACITIES OF SOME ALKYL ACETATES AT 295-323 K

Molar heat capacities C-p,C-m at constant atmospheric pressure have be en determined with a typical uncertainty of about 0.3% for eight liqui d 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 predicte d by the group additivity method demonstrated a rather limited capabil ity of the additivity scheme to predict correctly the C-p,C-m values f or higher (n > 10) homologues in the series.