The Apparent Molal Heat Capacity, Volume, and Compressibility of Electrolytes.

1933 ◽  
Vol 13 (1) ◽  
pp. 111-130 ◽  
Author(s):  
Frank T. Gucker
Keyword(s):  
Heat Capacity ◽  
Apparent Molal Heat Capacity

The apparent molal heat capacity, enthalpy, and free energy of seawater fit to the Pitzer equations

2005 ◽  
Vol 94 (1-4) ◽  
pp. 81-99 ◽  
Author(s):  
Frank J. Millero ◽  
Denis Pierrot
Keyword(s):  
Heat Capacity ◽  
Free Energy ◽  
Pitzer Equations ◽  
Apparent Molal Heat Capacity

THE HEAT CAPACITY OF AQUEOUS SOLUTIONS OF HYDROFLUORIC ACID

1946 ◽  
Vol 24b (2) ◽  
pp. 51-56 ◽  
Author(s):  
T. Thorvaldson ◽  
E. C. Bailey
Keyword(s):  
Heat Capacity ◽  
Aqueous Solutions ◽  
Specific Heat ◽  
Hydrofluoric Acid ◽  
Temperature Range ◽  
Apparent Molal Heat Capacity

The heat capacity of aqueous solutions of hydrofluoric acid varying in concentration from 0.55 to 48% was determined over the temperature range 18° to 20 °C. The respective values for the specific heat varied between 0.996 and 0.718 cal. per gm. The values obtained are consistent among themselves but differ markedly from those found in the literature. The apparent molal heat capacity of the solute over this range of concentration and temperature was calculated and compared with values obtained from the data of other experimenters.

The Specific Heats of Aqueous Solutions of Urea from 2 to 40° and the Apparent Molal Heat Capacity of Urea1

1937 ◽  
Vol 59 (11) ◽  
pp. 2152-2155 ◽  
Author(s):  
Frank T. Gucker ◽  
Fred D. Ayres
Keyword(s):  
Heat Capacity ◽  
Aqueous Solutions ◽  
Specific Heats ◽  
Apparent Molal Heat Capacity

HEAT CAPACITY MEASUREMENTS ON THE DILUTED ISING SYSTEM Cs3CopZn1-pCl5

1971 ◽  
Vol 32 (C1) ◽  
pp. C1-1008-C1-1009 ◽  
Author(s):  
E. LAGENDIJK ◽  
W. J. HUISKAMP ◽  
P. F. BONGERS
Keyword(s):  
Heat Capacity ◽  
Ising System ◽  
Heat Capacity Measurements

HEAT CAPACITY OF NEODYMIUM BELOW 10 K

1978 ◽  
Vol 39 (C6) ◽  
pp. C6-794-C6-795 ◽  
Author(s):  
E. M. Forgan ◽  
C. M. Muirhead
Keyword(s):  
Heat Capacity

TEMPERATURE-LINEAR TERM OF HEAT CAPACITY OF La-Ba-Cu-O AND La-Sr-Cu-O SYSTEMS

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-2133-C8-2134
Author(s):  
K. Kumagai ◽  
Y. Nakamura ◽  
I. Watanabe ◽  
Y. Nakamichi ◽  
H. Nakajima
Keyword(s):  
Heat Capacity ◽  
Linear Term

THE MECHANISM OF RAISING AND QUANTIFICATION OF SPECIFIC HEAT FLUX AT BOILING OF NANOFLUIDS IN FREE CONVECTION CONDITIONS

2017 ◽  
pp. 25-34
Author(s):  
V.N. Moraru
Keyword(s):  
Heat Transfer ◽  
Heat Flux ◽  
Heat Capacity ◽  
Specific Heat ◽  
Chemical Properties ◽  
Heating Surface ◽  
Physical Models ◽  
Superheated Liquid ◽  
Two Phase ◽  
Boiling Process

The results of our work and a number of foreign studies indicate that the sharp increase in the heat transfer parameters (specific heat flux q and heat transfer coefficient _) at the boiling of nanofluids as compared to the base liquid (water) is due not only and not so much to the increase of the thermal conductivity of the nanofluids, but an intensification of the boiling process caused by a change in the state of the heating surface, its topological and chemical properties (porosity, roughness, wettability). The latter leads to a change in the internal characteristics of the boiling process and the average temperature of the superheated liquid layer. This circumstance makes it possible, on the basis of physical models of the liquids boiling and taking into account the parameters of the surface state (temperature, pressure) and properties of the coolant (the density and heat capacity of the liquid, the specific heat of vaporization and the heat capacity of the vapor), and also the internal characteristics of the boiling of liquids, to calculate the value of specific heat flux q. In this paper, the difference in the mechanisms of heat transfer during the boiling of single-phase (water) and two-phase nanofluids has been studied and a quantitative estimate of the q values for the boiling of the nanofluid is carried out based on the internal characteristics of the boiling process. The satisfactory agreement of the calculated values with the experimental data is a confirmation that the key factor in the growth of the heat transfer intensity at the boiling of nanofluids is indeed a change in the nature and microrelief of the heating surface. Bibl. 20, Fig. 9, Tab. 2.

ABOUT HEAT CAPACITY OF TITANIUM CARBIDE TiCx

2019 ◽  
pp. 56-66
Author(s):  
I. Khidirov ◽  
V. V. Getmanskiy ◽  
A. S. Parpiev ◽  
Sh. A. Makhmudov
Keyword(s):  
Heat Capacity ◽  
High Temperature ◽  
Titanium Carbide ◽  
Temperature Dependence ◽  
Carbon Concentration ◽  
Room Temperature ◽  
Thermodynamic Characteristics ◽  
Liquid Nitrogen Temperature ◽  
Analysis Data ◽  
Thermal Excitation

This work relates to the field of thermophysical parameters of refractory interstitial alloys. The isochoric heat capacity of cubic titanium carbide TiCx has been calculated within the Debye approximation in the carbon concentration  range x = 0.70–0.97 at room temperature (300 K) and at liquid nitrogen temperature (80 K) through the Debye temperature established on the basis of neutron diffraction analysis data. It has been found out that at room temperature with decrease of carbon concentration the heat capacity significantly increases from 29.40 J/mol·K to 34.20 J/mol·K, and at T = 80 K – from 3.08 J/mol·K to 8.20 J/mol·K. The work analyzes the literature data and gives the results of the evaluation of the high-temperature dependence of the heat capacity СV of the cubic titanium carbide TiC0.97 based on the data of neutron structural analysis. It has been proposed to amend in the Neumann–Kopp formula to describe the high-temperature dependence of the titanium carbide heat capacity. After the amendment, the Neumann–Kopp formula describes the results of well-known experiments on the high-temperature dependence of the heat capacity of the titanium carbide TiCx. The proposed formula takes into account the degree of thermal excitation (a quantized number) that increases in steps with increasing temperature.The results allow us to predict the thermodynamic characteristics of titanium carbide in the temperature range of 300–3000 K and can be useful for materials scientists.

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