What is the value for ∆soreaction for the following reaction, given the standard entropy values?
2h2s(g) + so2(g) 3srhombic(s) + 2h2o(g)

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

o conteúdo de calor de um sistema é igual à entalpia apenas para um sistema que é constante