J. Doyle et al., THE EXCESS MOLAR ENTHALPY OF (NITROGEN PLUS DIMETHYL KETONE)(G) FROM TEMPERATURES OF 333.2 K TO 423.2 K, Journal of Chemical Thermodynamics, 29(6), 1997, pp. 677-685
A differential flow mixing calorimeter has been used to measure the ex
cess molar enthalpy H-m(E), of (nitrogen + dimethyl ketone)(g) at stan
dard atmospheric pressure over the temperature range 333.2 K to 423.2
K. The measurements are analysed using the corresponding states correl
ation of Tsonopoulos using his parameter n as a disposable parameter.
The measurements are found to be consistent with measurements of the s
econd virial coefficient B, the isothermal Joule-Thomson coefficient p
hi = B - T(dB/dT) and the pressure derivative chi = - T-2(d(2)B/dT(2))
of the heat capacity of dimethyl ketone. As the H-m(E) measurements a
re of good accuracy (nitrogen + dimethyl ketone)(g) is recommended as
a test system for checking the correct operation of gas phase mixing c
alorimeters. (C) 1997 Academic Press Limited.