Heat of formation of CH2OOWe have computationally elucidated the mechanism for formation of H2O, N2O and CO3from the reactions of CH2OO with H2, N2and CO2, respectively, by the direct attack of the terminal O atom of CH2OO. This unique mechanism, which is characteristically "bee-sting-like...
Heat of fusion... 79.7 cal/g Heat of vaporization... 539cal/g (100°C) Specific heat conductivity [cal/(cm sec-deg)]ice... 5.6 X 10-3 (0°C) liquid... 1.43 X10-3(0°C)1.54X 10-3 (45°C) saturated vapor... 5.51 X 10-5 (100°C) Specific electrical conductivity (ohm-1c...
In this work, density functional theory (DFT) calculations were carried out to study the formation enthalpies of HD in lizardite. The calculated formation enthalpies of lizardite with 0.8125 wt% HD are below 0.5 eV at pressures from 0 to 7 GPa, which are low enough for the formation of HD...
Use the given standard molar enthalpies of formation to determine the heat of reaction (in kJ) of the following reaction: 2 Ag2S(s) + 2 H2O(l) --> 4 Ag(s) + 2 H2S(g) + O2(g) [delta Hof data (all in kJ Use standard enthalpies of...
Formation of hydrogen bonding network of methane sulfonic acid at low degree of hydration (MSA)m·(H2O)n (m = 1–2 and n = 1–5)Ahmad Telfah, Z. Charifi, N. latelli, Issam A. Qattan, H. Baaziz, Qais M. Al-Bataineh, A. M. Alsaad & R. F. Sabirianov ...
The impact of the inner structure and thermal history of planets on their observable features, such as luminosity or magnetic field, crucially depends on the poorly known heat and charge transport properties of their internal layers. The thermal and elec
The mechanism for the formation of ZrSiO4 from a system of Si(OC2H5)4-ZrOCl2·8H2O-C2H5OH solution was investigated in relation to the T-→M-transformation of ZrO2. The heat-treated powders were mixtures of metastable fine T-ZrO2 and amorphous SiO2. The T-ZrO2 aggregates were gradually ...
Kinetic and thermodynamic results are consistent with the indication that the two steps are nonspontaneous before the introduction of heat is involved. The Avrami constant, n, of the two decomposition steps was calculated and interpreted to be responsible for the mechanism of 1D growth decomposition,...
Mantle temperatures estimated by solving the steady-state advection-diffusion heat equation assuming 0 °C at the seafloor and 1350 °C at 150 km depth, using a three- dimensional domain of mantle flow calculations, with variable grid spacing (512 × 256 × 101), and highest ...
The possible formation of a hydrogen coma around comets at large heliocentric distances. Astrophys. J. Lett. 324, L31 (1988). Article CAS ADS Google Scholar Gundlach, B. & Blum, J. Outgassing of icy bodies in the Solar System - II: heat transport in dry, porous surface dust layers. ...