SEARCH Articles Figures Tables Estimating the Viscosity of Gases Estimation Techniques for Phase Equilibria of Natural Gas Hydrates Estimation of Change in Enthalpy, Entropy, and Gibbs Function for Ideal Gases Estimation of Diffusion Coefficients in Gas Mixtures Estimation of Diffusion Coefficients in Gases Estimation of Multicomponent Diffusion Coefficients for Gas Mixtures Estimation of diffusivity in a gas mixture Estimation of diffusivity in a gas mixture at low density Estimation of diffusivity in a gas mixture at low pressure Estimation of gas permeability Estimation—Gases Quantitative estimation of landfill gas production