1. For the reaction in which reactant A is converted to product B, tell whether this proves is favorable at (a) 4°C and (b) 37°C. H (kJ • mol™) SJ•K· mol) 54 22 60 43 2. For a given reaction, the value of AH is 15 kl-mol" and the value of AS is 51 J-K*-mor". Above what temperature will this reaction be spontaneous? 公 AB

Phosphoryl chloride, POCl3(g), is used in the manufacturing of flame retardants. It is manufactured in an equilibrium process in which phosphorus trichloride reacts with nitrogen dioxide to form POCl3(g)and NO(g) according to the following equation: PCI3 (g) + NO₂ (g) POCI3 (g) + NO (g) + 228.93kJ At 298K, the equilibrium concentration of POCI3 was 0.68 mol/L, the concentration of NO was 0.72mol/L, the concentration of PC13 was 0.62 mol/L, and the concentration of NO₂ was 0.56 mol/L. a. 6.25 moles of POCI3 (g) is added to the 5.0 L reaction chamber. What is the new concentration of POCI 3 (g) when equilibrium is re-established? PCI 3 (g) NO2 (g) E' - C E + 11 POCI 3 (g) + NO(g)

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) NO(g) Ozlg) NO2(g) AH°F 90.3 33.2 (kJ/mol S° 210.8 205.0 240.1 (J/K-mol) Temperature in Kelvin =

Answer the following questions based on the given information about this chemical reaction.

Nitrogen dioxide is produced by reacting nitric oxide and oxygen: 2NO(g) + 02(g) $2NO2(g) ; AH° = -114 kJ Under which reaction conditions would you expect to have the greatest equilibrium yield of nitric oxide? O high temperature, high pressure O low temperature, high pressure O high temperature, low pressure O low temperature, low pressure

Use the data given here to calculate the values of AGan at 25 °C for the Compound AG; (kJ/mol) reaction described by the equation A +387.7 В +596.8 A + B =C +402.0 AGAN kJ

A cvg.cengagenow.com Flipgrid | 50ffc. GRLContent Netflix Favorites My Home 3-Day General.. Netflix Content [Review Topics] [References] 2req Use the References to access important values if needed for this question. 2req The free energy change for the following reaction at 25 °C, when [H*] = 7.21×10³ M and [Hg²*]=1.17 M, is 178 kJ: 2req 2H*(7.21×10-3 M) + Hg(1)→ H,(g) + Hg²*(1.17 M) AG= 178 kJ What is the cell potential for the reaction as written under these conditions? s 2req Answer: V ts 2req Would this reaction be spontaneous in the forward or the reverse direction? ots OM) pts 2reg Submit Answer Retry Entire Group 9 more group attempts remaining pts M) pts

Consider the reaction 2N,0,e) 4NO,(g) + 0,(g) at 25°C for which the following data are relevant: AH N2O5 11.289 kJ/mol 355.32 J/K mol NO2 33.150 kJ/mol 239.90 J/K mol 02 0 kJ/mol 204.80 J/K mol Calculate ASn AHn ASum and ASn

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