Question

the Consider reaction A203(s) +2Fe(s) Fe2O3(s) +2AIs) for which ΔH° = 851.5 kJ and Δ So-37.00 J/K at 298.15 K (1) Calculate the entropy change of the UNIVERSE when 2.154 moles of Al203(s) react under standard conditions at 298.15 K JK (2) Is this reaction reactant or product favored under standard conditions? (3) If the reaction is product favored, is it enthalpy favored, entropy favored, or favored by both enthalpy and entropy? If the reaction is reactant favored, choose reactant favored. enthalpy entropy both reactant favored SNext SubilA needed for this question. Consider the reaction 2H2S(2) +302g 2H20) +2S02(g) for which AFP-一1.124 x103 kJ and Δ So- 390.7 J/K at 298.15 K (1) Calculate the entropy change of the UNIVERSE when 2.347 moles of H2S(g) react under standard conditions at 298.15 K J/K universe (2) Is this reaction reactant or product favored under standard conditions? (3) If the reaction is product favored, is it enthalpy favored, entropy favored, or favored by both enthalpy and entropy? If the reaction is reactant favored choose reactant favored'. enthalpy entropy both reactant favoreds Submit r Retry Entire Group

Answer 1

E-Consider the reaction : for which AH- 851.5 kT and AS 3.ODJl at 298.15k i. Calculate the entr pod change-牛the cober) อ.154 universe males es of Ah03 ccact-under Standard concdiioos at 248 15 k Ssaurounding △ Ho = 2-154 mote × gsi.5kt male Ala03 △ーー34.DOTk lmafe -1834.131 kJ-6tsakak. 248.15K Assystem ASsur round n + ASuniver se- ASuni verse" [da. 698×103 + C-6-150 ] kJk kJ K (on) AG. 1834-131-1298 (39.698 xD3n (801. 381 kJ AG -60703 -898 ISK

eous Since AG is positive the veaction is nons A Guniverse is negative this adso imdicales the reaction is no-spmtapeous kshen AG 0 the reaction is favocurcd to lert i.e reactant favocred (a) Reactant Pavoured 7 Consider the rcach on Cy プ4) shich AH124 x0kJ and As at 98-15 K the-cun verse-when -changed ent op ーCalculate-the 2-34F nodes 다 +bsep react and er srandard conditions at a9s-I5K Jor males of HaS 2 moles & moles o--h58- 5x103 kJk 898:15 K

ASuniverse t-8.389-kJk. - ーsubstitute-the-values-44 AHJ-AS 389K As universe- AC 2 1-3 -298-15k asunivei se 、 8-389sk Since △9 is negative and the AS ni vese is positi be rcaction is spanfa oeoLus ve apd the ASunivese is positive e- Since △gis negative ie AGCO,bero chon pare de ards ight ie product favoured 8 Tt is enthalpg favouted due to high pegative AH uct favourec value it is