Thermodynamic properties

Thermophysical properties of industrially complex fluids whose composition is always ill-defined are in practice predicted by using thermodynamic models. To ensure the prediction accurately and reliably, a three-step procedure to obtain the properties of these fluids must be validated. The focus of this study is laid on a short review of tools which can be served for each of the three steps.

10p vibenya 31-12-2024 1 0   Download

Objectives lecture "Chapter 2 : Refrigerant" leaves: Understand the requirements of refrigerant and coolant, understand the thermodynamic and property of some refrigerants, use the refrigerant chart to display refrigeration cycle. Invite you to reference.

53p tuenguyen1981 05-02-2016 64 3   Download

We have investigated the thermodynamic properties of the cubic zirconia ZrO2 using the statistical moment method in the statistical physics. The free energy, thermal lattice expansion coefficient, specific heats at the constant volume and those at the constant pressure, CV and CP , are derived in closed analytic forms in terms of the power moments of the atomic displacements.

16p 12120609 01-06-2020 11 1   Download

Purpose, object and scope of studying: Apply of q-deformed Fermi-Dirac statistics to research heat capacity and paramagnetic susceptibility of free electron gas in metals at low temperatures, formula of heat capacity and magnetic susceptibility from the free electron gas in a metal depends on q deformation

26p change00 04-05-2016 47 3   Download

A clear difference in the enthalpy changes derived from spectroscopic and calorimetric measurements has recently been shown. The exact interpretation of this deviation varied from study to study, but it was generally attributed to the non-two-state transition and heat capacity change. Although the temperature-dependent thermodynamics of the duplex formation was often implied, systemic and extensive studies have been lacking in universally assigning the appropriate thermodynamic parameter sets.

10p system191 01-06-2013 37 4   Download

A comparative study of thermodynamic and kinetic aspects of Cu(II) and Ni(II) binding at the N-terminal binding site of human and bovine serum albumins (HSA and BSA, respectively) and short peptide analogues was performed using potentiometry and spectroscopic techniques. It was found that while qualitative aspects of interaction (spectra and structures of complexes, order of reactions) could be reproduced, the quantitative parameters (stability and rate constants) could not.

9p research12 01-06-2013 38 4   Download

Heteronuclear high-resolution NMR spectroscopy was employed to determine the solution structure of the excisi-onase protein (Xis)from thek-like bacteriophage HK022 and to study its sequence-specificDNA interaction. Aswild-typeXiswas previously characterizedas a generallyunstable protein, abiologicallyactiveHK022Xismutantwithasingle amino acid substitutionCys28fiSerwas used in this work.

13p fptmusic 12-04-2013 45 3   Download

Cellobiose dehydrogenase (CDH) is an extracellular flavocytochrome con-taining flavin and b-type heme, and plays a key role in cellulose degrada-tion by filamentous fungi. To investigate intermolecular electron transfer from CDH to cytochrome c, Phe166, which is located in the cytochrome domain and approaches one of propionates of heme, was mutated to Tyr, and the thermodynamic and kinetic properties of the mutant (F166Y) were compared with those of the wild-type (WT) enzyme.

0p awards 06-04-2013 36 2   Download

NMR and visible spectroscopy coupled to redox measurements were used to determine the equilibrium thermodynamic properties of the four haems in cytochrome c3 under conditions in which the protein was bound to lig-ands, the small anion phosphate and the protein rubredoxin with the iron in the active site replaced by zinc.

10p awards 06-04-2013 38 4   Download

Heme endows human serum albumin (HSA) with heme-protein-like reactiv-ity and spectroscopic properties. Here, the kinetics and thermodynamics of reductive nitrosylation of ferric human serum heme-albumin [HSA-heme-Fe(III)] are reported. All data were obtained at 20C. At pH 5.5, HSA-heme-Fe(III) binds nitrogen monoxide (NO) reversibly, leading to the formation of nitrosylated HSA-heme-Fe(III) [HSA-heme-Fe(III)-NO].

12p mobifone23 21-01-2013 52 6   Download