Experimental investigation of the heat capacity of heavy water

Atomic Energy ◽  
1961 ◽  
Vol 7 (5) ◽  
pp. 928-931 ◽  
Author(s):  
S. L. Rivkin ◽  
B. N. Egorov
Keyword(s):  
Experimental Investigation ◽  
Heat Capacity ◽  
Heavy Water

Heat capacity of activation for the hydrolysis of methanesulfonyl chloride and benzenesulfonyl chloride in light and heavy water

1969 ◽  
Vol 47 (22) ◽  
pp. 4199-4206 ◽  
Author(s):  
R. E. Robertson ◽  
B. Rossall ◽  
S. E. Sugamori ◽  
L. Treindl
Keyword(s):  
Heat Capacity ◽  
Free Energy ◽  
Temperature Dependence ◽  
Heavy Water ◽  
Bond Formation ◽  
Sulfonyl Chlorides ◽  
Benzenesulfonyl Chloride ◽  
Methanesulfonyl Chloride ◽  
Hydrolysis Of ◽  
Parameter Temperature Dependence

Rates of solvolysis of methanesulfonyl chloride and benzenesulfonyl chloride have been determined in H2O and D2O. The free energy, enthalpy, entropy, and heat capacity of activation were calculated. The exceptional accuracy of the data permitted an estimation of dΔCp≠/dT from a four parameter temperature dependence of the kinetic rates.From these data we conclude that both sulfonyl chlorides hydrolyse by the same mechanism (Sn2) The change in R from CH3 to C6H5 in RSO2Cl did not alter ΔCp≠ but ΔS≠ (20°) was changed from −8.32 to −13.25 cal deg−1 mole−1, respectively. The significance of this difference is attributed to the probability of bond formation rather than to differences in solvent reorganization.

Experimental Investigation of the Enthalpy and Heat Capacity of Liquid Cesium

2018 ◽  
Vol 27 (1) ◽  
pp. 30-35 ◽  
Author(s):  
S. V. Stankus ◽  
I. V. Savchenko ◽  
O. S. Yatsuk
Keyword(s):  
Experimental Investigation ◽  
Heat Capacity ◽  
Liquid Cesium

The ionization constant of heavy water (D2O) in the temperature range 298 to 523 K

1976 ◽  
Vol 54 (22) ◽  
pp. 3553-3558 ◽  
Author(s):  
David William Shoesmith ◽  
Woon Lee
Keyword(s):  
Heat Capacity ◽  
Free Energy ◽  
Heavy Water ◽  
Electrolyte Concentration ◽  
Aqueous Electrolyte ◽  
Ionization Constant ◽  
Standard Free Energy ◽  
Concentration Cell ◽  
Temperature Range

The ionization constant of liquid D2O has been measured over the temperature range 298 to 523 K using an aqueous electrolyte concentration cell. Values for the standard free energy, enthalpy, entropy, and heat capacity of ionization have been calculated. The results are compared to similar results for liquid H2O

An Experimental Investigation of the Enthalpy of Saturated Heavy-Water Liquid

1971 ◽  
Vol 93 (4) ◽  
pp. 422-426 ◽  
Author(s):  
E. S. Nowak ◽  
J. Chan
Keyword(s):  
Experimental Data ◽  
Experimental Investigation ◽  
Heavy Water ◽  
Enthalpy Change ◽  
Continuous Heating ◽  
Strong Function ◽  
Light Water ◽  
Confirmatory Tests ◽  
The Difference

Measurements on the enthalpy of saturated heavy-water liquid were made for temperatures ranging from 90 to 350 deg F by means of a non-flow, continuous-heating calorimeter. Based on confirmatory tests conducted on light water, it is estimated that the heavy-water enthalpy measurements obtained in this paper are accurate to ±0.5 percent. The experimental data of this research is in reasonable accord with the data obtained by other investigators. It was also found that the difference between the heavy-water enthalpy-change values and the corresponding values for light water is a strong function of temperature varying from about 0.2 percent at 100 deg F to 3.5 percent at 350 deg F.

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