The Interhalogen Species Iodine Trichloride (ICI3) May Be Synthesised According To The Following Reaction: 12 (S) + 3 Cl2 (9) 2 IC13 (S) The Thermodynamic Data For The Species Are: AHºf (KJ Mol-1) AS° (J Mol-'K) 12 (9) 62.26 260.6 12 (S) 0.000 116.7 C12 (9) 0.000 223.0 ICl3 (S) -88.28 172.0 A) Calculate The Standard Gibbs Free Energy (AG°) For The Reaction

 

 

 

The interhalogen species iodine trichloride (ICI3) may be synthesised according to the following reaction: 12 (s) + 3 Cl2 (g) - 2 ICI 3 (s) The thermodynamic data for the species are: AHf (kJ mol) AS (J mol K-1) 12 (g) 62.26 260.6 12 (s) 0.000 116.7 Cl2 (g) 0.000 223.0 ICI 3 (s) -88.28 172.0 a) Calculate the Standard Gibbs Free Energy (AG) for the reaction at 25.0 C. (4 marks) b) Is this reaction spontaneous at 25 C? Explain your answer. (1 mark)