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Constant Volume and Constant Pressure Respirometry
2008This chapter describes constant pressure (Gilson) and constant volume (Warburg) respirometry—long-established techniques that are still capable of accurate results. These are useful for measuring the metabolic rates of small organisms, cell cultures, and biochemical preparations.
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Viscous Flow of Liquids at Constant Volume and Constant Pressure
The Journal of Chemical Physics, 1958The energy of activation for viscous flow at constant volume, Ev, is dependent on the volume of a liquid. For normal liquids at elevated temperatures, Ev is only a small fraction of the value of the activation energy at constant pressure, Ep. However, for associated liquids, on account of the presence of hydrogen bonds, Ev is almost equivalent to Ep ...
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Chemical equilibria and kinetics at constant pressure and at constant volume
Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, 1987It has been claimed that, when discussing the relation between the effects of temperature at constant pressure and at constant volume on a chemical equilibrium constant, it is, in general, the volume of the pure solvent, or perhaps its molar volume, that ‘should’ be kept constant, not the volume of the actual reaction mixture.
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Mobilities of polymer liquids at constant temperature and at constant volume
Polymer, 1978Abstract Previously developed relationships between isomobility states and equilibrium p - v - T properties of vinyl polymers are extended to predict mobilities, μ, at constant temperature and at constant volume, with poly(vinyl acetate) as an example.
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Definition of variable-volume and constant-volume reaction rates
Journal of Chemical Education, 1965Examines disagreements regarding the fundamental definition of the reaction-rate expressions.
Max S. Peters, Edward J. Skorpinski
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Thermal behavior of the constant volume body plethysmograph
IEEE Transactions on Biomedical Engineering, 1995The thermal behavior of the constant volume body plethysmograph under the thermal effect of the patient and the thermostatic bag is modeled by two relations: the first is between the temperature in the box and the heat flux generated by the patient and the bag, and the second is between the pressure in the box and the same flux.
Philippe Saucez +3 more
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A novel inflatable robot with constant and continuous volume
2011 IEEE International Conference on Robotics and Automation, 2011Inflatable structures are already used in robotics to build stiff and light inflatable links. Moreover, those links are compliant and they can be safely used in robots interacting with critical installations. Nevertheless, until now, linkages with an inflatable structure have always been composed of independent inflatable links separated by joints. But
Sebastien Voisembert +3 more
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A reassessment of the molar volume of silicon and of the Avogadro constant
IEEE Transactions on Instrumentation and Measurement, 2001An "absolute" value for the molar volume of Si in Si single crystals is presented as 12.058 820 7(54) cm/sup 3/ mol/sup -1/ with a relative standard uncertainty of 4.5/spl middot/10/sup -7/. It is argued that the consistency of most of the molar volume determinations is useful for evaluating the quality of the Si single crystals involved.
Paul De Bievre +13 more
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Volume dependence of gruneisen constant
Solid State Communications, 1974Abstract An expression is derived for a new isothermal parameter λ = v γ ( ∂γ ∂v) T which gives the volume dependence of Gruneisen constant of cubic crystals and its value is calculated in the case of NaCl, KCl, Cu, Ag, Al and Au. It is shown that the λ parameter modifies the thermal contribution to the isothermal compressibility of ...
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Photometric determination of cell permeability at constant volume
Biochimica et Biophysica Acta (BBA) - Biophysics including Photosynthesis, 1966Abstract An optical method is described for the study of permeability of cell suspensions under conditions approximating constant volume. This method minimizes solute-solvent interactions as well as membrane distortions accompanying volume changes, and makes possible the study of effects of cell volume changes on permeability.
R I, Macey, A B, Tolberg
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