For the reaction 2HBr(g) + Cl2(g)2HCl(g) + Br2(g) H° = -81.1 kJ and S° = -1.20 J/K G° would be less than zero at temperatures (above, below) fill in the blank 1 K.

Under normal room conditions (standard pressure at about 20°C), water will not boil, so we do not observe H2O() + 40.7 kJ → H2O(g). At this temperature, the process is [ Select ] because [ [ Select ]

At what temperature in Kelvin does the reaction shown below reach equilibrium under standard state conditions. Report your answer to the correct sig figs. 2 NO(g) + O2(g) → 2 NO2(g) Given: AH°r (NO) = 90.3 kJ/mol; S°(NO) = 210.8 J/K-mol %3D AH°t (O2) = 0 kJ/mol; S°(02) = 205.0 J/K•mol %3D AH° (NO2) = 33.2 kJ/mol; S°(NO2) = 240.1 J/K•mol %3D Temperature in Kelvin =

Use data from Appendix attached to calculate ΔS∘rxnΔ�rxn∘ for each of the reactions given. SO2(g)+12O2(g)→SO3(g)SO2(g)+12O2(g)→SO3(g) Express your answer using one decimal place in J/K.