17.51 Calculate the entropy change for the following processes. (a) 1.00 mol H,O(s) melts at 0...
Calculate the standard entropy change for the
formation of 1.0 mol of the following compounds from the elements
at 25 °C.
a. C2H2 (g)
b. MgCO3 (s)
Calculate the standard entropy change for the formation of 1.0 mol of the following compounds from the elements at 25 °C. C2H2(g) a. Use the following data: C2H2(g) C(s, graphite) H2(g) J K·mol 200.94 5.6 130.7 A, Sº = J/Kºmol-rxn MgCO3(s) b. Use the following data: S° MgCO3(s) Mg(s) C(s, graphite) O2(g) K·mol...
Calculate the standard entropy change for the reaction2Mg(s)+O2(g)→2MgO(s)using the data from the following table:Substance△ Hf (kJ/mol)△Gf (kJ/mol)S0 [J/(K/mol)]Mg(s)0.000.0032.70O2(g)0.000.00205.0MgO(s)-602.0-569.627.00Express your answer to four significant figures and include the appropriate units.
question 17.57
entropy change for H2(g) + CuO(s) → H2O(0) + Cu(s) 17.56 Use the data in Appendix G to calculate the standard entropy change for 2Al(s) + Fe2O3(s) → Al2O3(s) + 2Fe(s) OBJECTIVE Define Gibbs free energy and relate the sign of a Gibbs free-energy change to the direction of spontane- ous reaction. 17.57 Calculate AGº for the following reactions and state whether each reaction is spontaneous under standard con- ditions at 298 K. (a) Fe2O3(s) + 2Al(s) →...
Calculate the entropy change at 25°C for the following reaction: Li (s) + 0.5 O2 (g) + 0.5 H2 (g) → LiOH (s) The entropy contents of the reactants and product at 25°C are as follows: Substance S, J/mol•K Li (s) 29.12 O2 (g) 205.138 H2 (g) 130.68 LiOH (s) 42.8
1. Ice melts at 0C° with an enthalpy of fusion = 6.01 kJ mol-1 . An ice cube with a mass of 20.0g is placed inside an incubator at 40.0C°. Determine the total entropy change (in J/K) of this system. 2. Calculate the total entropy change (in J/K) when 50.0 g of H2 gas initially in a tank at a pressure of 145 psi is withdrawn from the tank under a constant pressure of 23.0 psi at standard room temperature....
Calculate the standard entropy change for the reaction 2H2(g)+O2(g)?2H2O(l) using the data from the following table: Substance ?H?f (kJ/mol) ?G?f (kJ/mol) S? [J/(K?mol)] H2(g) 0.00 0.00 130.6 O2(g) 0.00 0.00 205.0 H2O(l) -285.8 -237.2 69.90 Express your answer to four significant figures and include the appropriate units. Please show me the steps on how to solve this!!! Thank you!!!
Calculate the standard entropy change for the reaction P4(g)+5O2(g)→P4O10(s) using the data from the following table: Substance ΔH∘f (kJ/mol) ΔG∘f (kJ/mol) S∘ [J/(K⋅mol)] P4(g) 58.9 24.5 279.9 O2(g) 0 0 205.0 P4O10(s) −2984 −2698 228.9
4) (a) Use the standard entropy values (AS") in the Appendix to solve for ?5° of each reaction at 25°C. (b) Solve for AG° ron for both reactions as well using the standard free energy values. (AG) 2H20(liquid)2H2(g) + O2(g) Al2O3(s) 3 H2(g) 2 Al(s)3 H20(g) 5) AH° 180.7 kJ; AS 24.7 JIK 25°C N2(8) O2(g)-2 NO(g) (a)Calculate the standard free-energy change for the reaction at 25°C. (b) Calculate ?G at 500°C using the ?G° value calculated from part a.
2. How does the entropy of a system change for each of the following processes? Indicate 49<0 or > 0 (a) (b) (c) (d) (e) (f) A solid melts. A liquid freezes. A liquid boils. A vapor is converted to a solid A vapor condenses to a liquid. A solid sublimes. 13. Given that AH value of AG = -2219 kJ/mol and that AS au=-216 JK mol at 25°C, determine the at 25 °C for the reaction CH5g + 50g...
Using the standard entropy values: NOG), S = +210.6 J mol-1 K-1 02(0), sº = +205.0 J mol-1 K-1 NO2(g), sº = +240.5 J mol-1 K-1 calculate the standard entropy change, Asº, for the reaction: NO(g) + O2(g) NO2(g) A.-246.1 kJ B. +246.1 kJ C.-175.1 kJ D.-656.1 kJ E. -72.6 kJ