title: [A new thermodynamic function, which allows easy determination of the direction of a reaction and its energetic characteristics].
abstract: A new thermodynamic function, namely a universal variable Q, is suggested for the description of reversible chemical reactions. According to the definition, if the reaction is represented by the equation aA + bB = gG + hH, and K is the equilibrium constant, the universal variable Q is: Q = aG(g)aH(h)/(aA(a)aB(b)K). Then, Q is a dimensionless variable, which has the following properties: Q = 1 for the state of equilibrium, Q < 1 for spontaneous reactions, and Q > 1 for the reverse reaction. Knowledge of Q allows determination of the Gibbs energy and standard Gibbs energy by the same formula deltaG = RTlnQ.
authors.forename: S A
authors.initials: SA
authors.lastname: Bobrovnik
mesh_terms: D019298:Glucose-6-Phosphate / Q000737:chemistry; D005958:Glucosephosphates / Q000737:chemistry; D008956:Models, Chemical; D013816:Thermodynamics
chemical_list: D005958:Glucosephosphates; D019298:Glucose-6-Phosphate; C031590:glucose-1-phosphate