Amore accurate expression for the vibrational energy of a di- atomic molecule is (n = (-+ ) m - - (n + ) * where he is called the anharmonicity constant. the additional term here represents the first deviation from strictly harmonic behavior. treating ne as a small parameter, calculate the anharmonic effect on the various thermo- dynamic functions e, cy, s, and p at least to first order in ke.

Talc (french chalk) is the ingredient

Yes, endothermic means it turns cold. and some chemical changes include change of tempature.

We first assume that this gas is an ideal gas where it follows the ideal gas equation. the said equation is expressed as: pv = nrt. from this equation, we can predict the changes in the pressure, volume and temperature. if the volume and the temperature of this gas is doubled, then the pressure still stays the same.

Answer is: the equilibrium  shifts toward the reactants, to the left side of chemical reaction.it is because lead(ii) nitrate dissociates in water: pb(no₃)₂ → pb²⁺(aq) + 2no₃⁻(aq).according to lechatelier's principle, the position of equilibrium moves to counteract thechange (more lead cations, common ion), the position of equilibrium will move so that the concentration ofproducts decrease and concentration of reactants of chemical reaction increase.read more on -