Measurement of heat capacity by fitting the whole temperature response of a heat-pulse calorimeter

Hwang, Jih Shang; Lin, Kai Jan; Tien, Cheng
January 1997
Review of Scientific Instruments;Jan1997, Vol. 68 Issue 1, p94
Academic Journal
Reports on the development of a new method that fits the whole temperature response of a heat-pulse calorimeter for heat capacity. Analyzation of the thermal response of a heat-pulse calorimeter on a model that was used by the relaxation method to derive some useful relations and further utilize the numeric method of the general linear least squares to determine the heat capacity of a sample; Accuracy of the proposed method which was verified by determining the heat capacity of a 0.249 76 g copper sample; Comparison of the result with the literature; Indication that the proposed method is capable of measuring heat capacity regardless if the sample is adiabatically or nonadiabatically isolated; Details of the employed calorimetric system.


Related Articles

  • calorimeter.  // Taber's Cyclopedic Medical Dictionary (2009);2009, Issue 21, p342 

    An encyclopedia entry for "calorimeter" is presented.

  • Automated, small sample-size adiabatic calorimeter. Van Oort, Michiel J. M.; White, Mary Anne // Review of Scientific Instruments;Jul1987, Vol. 58 Issue 7, p1239 

    An automated adiabatic calorimeter with an internal volume of 5 cm3, operable over the temperature range from 30 to 380 K is described. One of the main advantages of this calorimeter over others in use is the much abbreviated down time during sample changes, due to interchangeable sample vessels...

  • Development of a high-sensitivity, computer-controlled titration calorimeter. Baisden, P. A.; Grant, P. M.; Kinard, W. F. // Review of Scientific Instruments;Oct87, Vol. 58 Issue 10, p1937 

    A highly sensitive, adiabatic titration calorimeter controlled by a personal computer is described. Operation of the entire calorimetric titration is automated, including the thermoelectric offset of the heat of stirring, the electrical calibration of the heat capacity, the addition of titrant,...

  • Scanning calorimeter for nanoliter-scale liquid samples. Olson, E. A.; Olson, E.A.; Efremov, M. Yu.; Efremov, M. Yu; Kwan, A. T.; Kwan, A.T.; Lai, S.; Petrova, V.; Schiettekatte, F.; Shiettekatte, F.; Warren, J. T.; Warren, J.T.; Zhang, M.; Allen, L. H.; Allen, L.H. // Applied Physics Letters;10/23/2000, Vol. 77 Issue 17 

    We introduce a scanning calorimeter for use with a single solid or liquid sample with a volume down to a few nanoliters. Its use is demonstrated with the melting of 52 nL of indium, using heating rates from 100 to 1000 K/s. The heat of fusion was measured to within 5% of the bulk value, and the...

  • High-pressure photoacoustic calorimetry. Daffron, John A.; Farrell, Gerard J.; Burkey, Theodore J. // Review of Scientific Instruments;Oct2000, Vol. 71 Issue 10 

    A high-pressure photoacoustic calorimeter has been developed to operate up to 200 MPa. Photoacoustic calorimetry can be used to study the microsecond kinetics and thermodynamics of reactions in solution. Both thermal expansion and volume of reaction contribute to the generation of the...

  • A modified dual-slope method for heat capacity measurements of condensable gases. Pilla, S.; Hamida, J. A.; Hamida, J.A.; Sullivan, N. S.; Sullivan, N.S. // Review of Scientific Instruments;Oct2000, Vol. 71 Issue 10 

    A high resolution nonadiabatic method for measuring the heat capacity (C[sub P]) of bulk samples of condensable gases in the range of 7.5-70 K is described. In this method C[sub P] is evaluated by directly comparing the heating and cooling rates of the sample temperature for two algebraically...

  • Differential microcalorimeter for liquid samples. Barbini, A.; Bertolini, D.; Cassettari, M.; Papucci, F.; Salvetti, A.; Salvetti, G.; Veronesi, S. // Review of Scientific Instruments;Jul1989, Vol. 60 Issue 7, p1308 

    A microcalorimeter for liquid samples with high performance and low cost is described. It is essentially a differential apparatus in a ‘‘twin’’ configuration with two cylindrical cells. Two resistive sensors, put in a Wheatstone bridge, are wound on the cells to measure...

  • An isothermal scanning calorimeter controlled by linear pressure variations from 0.1 to 400 MPa. Calibration and comparison with the piezothermal technique. Randzio, Stanislaw L.; Grolier, Jean-Pierre E.; Quint, Jacques R. // Review of Scientific Instruments;Apr94, Vol. 65 Issue 4, p960 

    An isothermal scanning calorimeter controlled by linear pressure variations is described for the pressure range 0.1-400 MPa at temperatures from 303 to 573 K. The rate of pressure variations can be as low as 0.002 MPa/s over the whole pressure range. The functioning of the instrument was tested...

  • Calorimetric Instruments.  // Drug Discovery & Development;Apr2007, Vol. 10 Issue 4, p13 

    The article evaluates the CSC Nano DSC III and Nano ITC III calorimetric instruments from Calorimetry Sciences Corp.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics