12. For the reaction Cl,0(g)+%O2(g) → 2C10, (g), AH° = 126.4 kJ/mol and AS° =-74.9 J/K mol. At 379°C, what is AG ? a. 154.8 kJ/mol b. 49.0 kJ/mol c. 175.2 kJ/mol d. 77.6 kJ/mol e. 157.3 kJ/mol

A certain liquid has a vapor pressure of 92.0 Torr at 23.0 °C and 259.0 Torr at 45.0 °C. Calculate the value of AHap for this liquid. AH vap = Calculate tl x10 boiling point: TOOLS s liquid. kJ/mol °C

Without doing any calculations or using Sf data, predict whether the DS for each process would be positive or negative. A. Si(s) + 2Cl2(g) SiCl4(g)B. 2HgO(s) 2Hg(l) + O2(g)C. C12H22O11(aq) C12H22O11(s)

Below is the reaction for the evaporation of water. H2O (I) H20 (g) AH°f H2O (1)= -285.8 kJ/mole ; H20 (g) = -241.8 kJ/mole %3D Calculate AH*rxn for this process. This is the reaction that happens when your sweat evaporates. Why is this a cooling mechanism for your body? How much sweat would have to evaporate from a person's skin to cool the body by 0.5 C? Assume this person has a body mass of 150 Ibs and the specific heat capacity of the body is 4.0 J/g °C. 1 Ib. = 0.454 kg

Determine the AU°reaction at 25 °C (in kJ/mol) for the following reaction: 2NO(g) + O2(g)→2NO2(g) Appendix D kJ/mol

1. A reaction with AH° = -64.0 kJ/ mole has K = 1.00 X 108 at 25.0 °C. What would be the value of K at 0.00 °C? 2. A reaction with AH° = 618.0 kJ/mole has K = 1.00 X 1060 at 25.0 °C. What would be the value of K at 500.0 °C?

what letter choice is this

Calculate H°rxnfor the following reaction and the given H°f of the reactants and products. A. 440 kJ B. -2440 kJ C. -440 kJ D. 1960 kJ

Consider the following reaction: H2(g)+I2(g)-->2HI(g) Given the following data: H2: delta H*= 0 kJ/mol; S*= 131 J/mol K I2: delta H*= 0 kJ/mol; S*= 104 J/mol K HI: delta H*= 25 kJ/mol; S*= 206 J/mol K Determine the delta G* in kJ for this reaction at 298K.

The value of AH° for the reaction below is -336 kJ. Calculate the heat (kJ) released to the surroundings when 23.0 g of HCl is formed. 26. CH4 (g) + 3Cl, (g) → CHC1; (1) + 3HC1 (g) A) B) C) 211 177 70.7 D) -336