Which of the following systems show an increase in entropy? о CH3OH (→CH3OH (g) NaCl → Nat (s) CI (aq) N2 (g) + O2(g) →2 NO (g) →N₂04 (8) 2 NO2 (g) H₂O (s) → •H₂O (1) + Cl (aq)

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References] Use the References to access important values if needed for this question. Consider the following system at equilibrium where AH° = 198 kJ, and K, = 2.90x10, at 1150 K: 2SO3(g) =2502(g) + O2(g) If the TEMPERATURE on the equilibrium system is suddenly decreased: The value of K. A. Increases B. Decreases C. Remains the same The value of Q. A. Is greater than K. B. Is equal to K. C. Is less than K. The reaction must: A. Run in the forward direction to restablish equilibrium. B. Run in the reverse direction to restablish equilibrium. C. Remain the same. Already at equilibrium. The concentration of O, will: A. Increase. B. Decrease. C. Remain the same. Submit Answer Retry Entire Group 8 more group attempts remaining Previc 50 hp ins ort sc delets 40

17.110 Synthetic diamonds are made under conditions of high temperature (2000 K) and high pressure (1010 Pa; 105 atm) in the presence of catalysts. Car- bon's phase diagram is useful for finding the conditions for formation of natural and syn- thetic diamonds. Along the diamond-graphite line, the two allotropes are in equilibrium. (a) At point A, what is the sign of AH for the formation of dia- Diamond A Liquid Graphite Vapor. mond from graphite? Explain. (b) Which allotrope is denser? Explain. Temperature Pressure

Which of the following describes the biological energy to do work like muscle contractions? Group of answer choices Enthalpy Entropy Gibbs Energy none of the above

For the equation:   CH3OH (l) + 3/2 O2(g) -> CO2 (g) +2H2O   What drives this reaction to go in the forward direction? Entropy, Enthropy, both, or neither?

Which of the following processes will result in an increase in entropy for the system?          (A) 2N2O(g)  +  O2(g)  -->  4NO(g);         (B) 2NO(g)  +  O2(g)  -->  2NO2(g);         (C) CO(g)  +  NO2(g)  -->  CO2(g)  +  NO(g);         (D) SO3(g)  +  H2O(l)  -->  H2SO4(aq)

Table 18.2 K, Values for Some Monoprotic Acids at 25°C Name (Formula) lodic acid (HIO₂) Chlorous acid (IICIO₂) Nitrous acid (HNO₂) Hydrofluoric acid (HF) Formic acid (HCOOH) Benzoic acid (C1,COOH) Acetic acid (CH-COOH) Propanoic acid (CH,CH,COOH) Hypochlorous acid (HCIO) Hypohromous acid (HBrO) Hydrocyanic acid (HCN) Which of the following buffer solutions has the largest buffer capacity? Phenol (C,H,OH) Hypoiodous acid (HIO) Lewis Structure* H-Y-8 H-8-8-8 H-8-N=8 H-E: පාලය 10: H-C-8-H H H- H ----9- H H H-8-či: HB: H-C=Ni -8-H H 101 H-8-X --H 1.6x10 1 1.12X10 2 7.1x10 6.8x10-4 1.8x10-4 6.3x10 5 1.8x10 5 1.3x10-5 2.9x108 2.3x10 9 6.2x10-10 10x10 10 2.3x10-1 A) A buffer made by mixing 40.00 mL of 0.25 M NaClO₂ and 50.00 mL of 0.20 M HCIO2. B) A buffer made by mixing 58.33 mL of 0.12 M NaF and 50.00 mL of 0.14 M HF. C) A buffer made by mixing 75.00 mL of 0.10 M NalO and 75.00 mL of 0.10 M HIO. D) A buffer made by mixing 80.00 mL of 0.15 M CH3COONa and 60.00 mL of 0.20 M CH3COOH.

For each of the following reactions, decide whether entropy is increasing (+AS) or decreasing (-AS). (a) 2CH4(g) + 2CO2(g) C2H4(g) + 2H,0(g) + 2CO (g) (b) CO2(g) + 3H2(g) CH;OH(g) + H,O(g) (c) CH;OCH;(g) + H20(g) 2CO(g) + 4H2(g)

Calculate The Equilibrium Constant K of hydrosulfuric acid (H2S(aq))   Standard Gibbs Free energy for H2S(aq) is -27.7Then, Calculate the pKa1 and pKa2 of hydrosulfuric acid