Abstract
Methane/hydrogen mixtures are a promising kind of fuel for automobile, water and railway transport, supersonic aircraft, and rocket engineering. We have used the differential capillary method to measure the capillary constant a2 and calculate the surface tension σ in the temperature range from 95 to 176K and the pressure range from that of the saturated vapors of pure methane to 4MPa. Equations have been derived which describe the temperature, baric and concentration dependences of a2 and σ. The adsorption has been determined. The results of measurements are discussed in the framework of thermodynamic models of the theory of surface phenomena.
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