Question

3) The dissociation of ammonium nitrate in aqueous solutions is described by the following chemical reaction Use the information provided in the table below at 25°C, to plot the Gibbs free energy change as a function of the natural logarithm of Q, InQ. [Recall that Q is the quotient of the product of the products raised to the stoichiometric coefficients over the product of the reactants raised to their stoichiometric coefficients.] a) On the ΔG vs In(Q) plot indicate the equilibrium and standard state values of the Gibb s free energy change. b) Replot ΔG vs In(Q) at 50°C and comment on the observed changes. Will be the thermodynamics of the reaction be in general more or less favorable at this temperature? So298 (J/mol-K) Compound NH4NO3(s) NH4 (aq) NO (aq) Δ HP298(kJ/mol) 365.56 132.51 -205.0 151.08 113.4 146.4

Answer 1

At 50 2 1,0 1619 -1O 2.0 3. o 5,0 At 85 C At50.C I.755 .6/9