thermo report

Experiment: Thermodynamics Data and Results B. Question 1: Predict the Sign of ∆ S rxn o . For each of the reactions listed in Table 3, predict the sign of D S o . Use the cases and examples in the introduction to help. Based on the predictions, record either + or – in the chart below. Explain how the prediction was made. Reactions Predicted Sign (+ or -) of D S Explanation N 2 (g) + 2O 2 (g) --> 2 NO 2 (g) N 2 O (g) + NO 2 (g) à 3NO(g) 6Cl 2 (g) + 2Fe 2 O 3 (s) à 4FeCl 3 (s) + 3O 2 (g) SO 2 (g) + 2H 2 (g) à S(s) + 2H 2 O(g) 3 Fe2O 3 (s) + H 2 (g) --> 2Fe 3 O 4 (s) + H 2 O(l) P 4 O 10 (s) + 16H 2 (g) à 4PH 3 (g) + 10H 2 O(g) 2H 2 O 2 (l) à 2H 2 O(l) + O 2 (g) C . Table 4: Lab Data (Template—Copy into Excel) Reactions D H o rxn D G o rxn D S o rxn D G o rxn @ 298K D G o rxn @ 10K D G o rxn @ 10,000K N 2 (g) + 2O 2 (g)  2 NO 2 (g) N 2 O (g) + NO 2 (g) à 3NO(g) 6Cl 2 (g) + 2Fe 2 O 3 (s) à 4FeCl 3 (s) + 3O 2 (g) SO 2 (g) + 2H 2 (g) à S(s) + 2H 2 O(g) 3 Fe2O 3 (s) + H 2 (g)  2Fe 3 O 4 (s) + H 2 O(l) P 4 O 10 (s) + 16H 2 (g) à 4PH 3 (g) + 10H 2 O(g) 2H 2 O 2 (l) à 2H 2 O(l) + O 2 (g) D. Calculate ∆ H rxn o ∆G rxn o , , and ∆ S rxn o . (Use Excel and Table 1) E. Calculate ∆G rxn o at 298 K . (Use Excel and Equation 2: ∆G rxn o = ∆ H rxn o − T ∆S rxn o ) Page 2 of 4 e8d0cffca44dabff42cd565c13ea1a59cb4b0451.docx Copyright © 2020-2021 RCSJ, All rights reserved. F . Question 3. ∆G rxn o was calculated using two different methods, are the values similar? Explain.