Substantiation of application of the formula of pressure of ideal gas at a deduction of equation Leontev for parametre Gruneisen of solid bodies

Leontev's formula with reference to crystals is in the satisfactory consent with equation Gruneisen. The question on correctness of use of the basic equation of the kinetic theory of ideal gas is discussed at a deduction of this formula. Application of Leontev's formula to glass forming to solid bodies is viewed.