Date Dec. 22, 1994The invention relates to a method for the measurement of the molar mass of a gas or gas mixture and an apparatus for the performance of the method. The gas or gas mixture to be investigated is passed through at least one holder, on which at least one sonic or ...
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in which ∆P=Pin−Poutis the pressure drop along the nanochannel with a cross-section areaA,Rthe gas constant,Tthe temperature, andMthe molar mass of the gas molecule. Equation (1) is obtained based on the assumption of complete diffuse reflections after gas-wall collisions. The transmiss...
The invention relates to a method for measuring the pressure and/or molar mass of a gas in a housing, the measure being carried out via an acoustic sensor, said acoustic sensor at least one transducer (), an electric system () connected to the transducer () and a coupling layer () for...
In general, fluidised bed gasifiers allow a high and uniform heat and mass transfer between the solid biomass and the gasifying medium, which allows good mixing and contact that increase the reaction rates and conversion efficiencies, minimising tar and char production (together with biomass ...
based on having imaged parts of the lowermost mantle and CMB region. A local LSL is, in any case, expected to be dynamically unstable in the sense that it would either spread globally to cover the core or become entrained with upwelling mantle material. While topographic variations on the man...
A gas is found to obey the equation of state given byP= RT - a--- ---V-b VWhere a and b are constants but not equal to zero.Determine whether this gas a critical point.If it does,express the critical constants in terms of a and b.If does not explain why.A cloud mass moving...
The mesh sizes (ξ) of the gels were evaluated according to the following formula (the affine network model) [26]:ξ=(G'NART)−13where G′ is the storage modulus of the swollen gel, NA is the Avogadro constant, R is the molar gas constant, and T is the temperature. Cross-linking...
a focus on the near-critical region of the system36,37,38. An influence of subordinate amounts of CO2on phase equilibria in the CH4–H2S system in the low-temperature region remains unclear30,32. Experimental studies on purified H2S gas have shown that three structurally distinct solid H2S ...
The capability of ordinary surfactants in solubilizing hydrophobic compounds can come to a limit, if the extension of a contaminant is too large. An attractive goal is the development of surfactants which can actively reduce the size of dirt. Because str