Consider the reaction: 2H₂O(l) → 2H₂(g) + O₂(g) Using standard absolute entropies at 298 K, calculate the entropy change for the system when 2.26 moles of H₂O(1) react at standard conditions. AS⁰ Substance So system H₂(g) 0₂ (9) H₂O(l) J K. mol 130.7 205.1 69.9 J/K

Consider the reaction: Ca(OH)2 (aq) + 2HCl(aq) → CaCl2 (s) + 2H₂O(1) Using standard thermodynamic data at 298 K, calculate the entropy change for the surroundings when 2.04 moles of Ca(OH)2 (aq) react at standard conditions. AS⁰ Substance AH (kJ/mol) Ca(OH)2 (aq) HCl(aq) CaCl₂ (s) H₂O (1) surroundings -1002.8 -167.2 -795.8 -285.8 J/K

2. Consider the following reaction: CO) +=O=COz) s) Find AH (kJ/mol) of the reaction at 298 K and 1 bar (b) ›) Determine the spontaneity of the reaction in a furnace operating at 2000 K where the partial pressures of the compounds are: Compound iP (bar) CO(R) O₂(g) CO2(g) Consider that for this reaction AG2000k = -111 kJ/mol 0.05 2.00 2.50

Consider the following samples of gas.Select the set of graphs below that show the distributions of the speed of the atoms in each sample (please take a photo of the correct graph).

Part a plz!

Here are the enthapies for each compound.  For acetone vapor, H(1)in = 35.7 kJ/mol and H(2)out= 32.0 kJ/mol. For nitrogen, H(3)out= -1.26 kJ/mol.   The written stuff on paper is additional information.

Please don't provide handwriting solution

Equilibrium Diagram for Air–NH3–H2 at 20oC and 1 atm.The partial pressure of ammonia (A) in air–ammonia mixtures in equilibrium with their aqueous solutions at 20oC is given in Table 4.7. Using these data, and neglecting the vapor pressure of water and the solubility of air in water, construct an equilibrium diagram at 101 kPa using mole ratios YA = mol NH3/mol air and XA = mol NH3/mol H2O as coordinates. Henceforth, the subscript A is dropped. If 10 mol of gas of Y = 0.3 are contacted with 10 mol of solution of X= 0.1,what are the compositions of the resulting phases? The process is assumed to be isothermal at 1 atm.

Q6. Nickel at 650∘∘C has 1.50 x 1015 vacancies/cm3.  The atomic weight of Ni is 58.69 g/mol and the density at this temperature is 8.6 g/cm3. (10 points) (a) What is the activation energy required to create a vacancy in Ni?   (b) Ni is then cooled to 400∘∘C. What will be the number of vacancies per cubic centimeter? Assume that the change in the density in the cooling is negligible.

1 mol of water solidifies at 95.0 oC and 1 atm.Calculate the (I) entropy of the sample, (II) entropy of the surroundings, (III) total entropy change for the following processes. Are these processes spontaneous?  Consult the table below.  You will need to use the fact that entropy is a state function to make these calculations.a.1 mol of water solidifies at -5.0 oC and 1atm b. 1 mol of water solidifies at 95.0 oC and 1 atm.