EFFECT OF OPACITY ON THE CONVECTIVE-ENVEL OPE PARAMETERS IN SOLAR MODELS

High-precision calculations of a set of standard models of the Sun int ernal structure, using different opacity tables, are presented. Models are compared on the basis of two clue parameters - helium abundance a nd specific entropy in the convective zone. Effect of opacity on these two parameters in the radiative interiors is studied. Comparison of s tandard models, based on different opacity tables, shows that specific entropy in the envelope diminishes with growing opacity in the radiat ive zone, whereas helium abundance grows with opacity growing in the c ore. Investigation of static nonevolving models with modified opacitie s indicates to a general correlation between the envelope specific ent ropy and opacity in the radiative zone, outside the energy release reg ion.