The standard reaction free energy AG = 29. kJ for this reaction: Fe₂O3(g) + 2 H₂(g) →2 Fe(s) + 3 H₂O(1) Use this information to complete the table below. Round each of your answers to the nearest kJ. reaction 6Fe(s) + 9H₂0(1)→ 3Fe₂O3 (g) + 6H₂ (g) 2Fe₂O3(g) + 4H₂(g) → 4Fe(s) + 6H₂0(1) - 2Fe (s) + 3H₂O(1)→ Fe₂O3 (g) + 2H₂ (8) AGⓇ 0 kJ OKJ 0 kJ x10 X

A student dissolves 13.4 g of sodium chloride (NaCl)in 250. g of water in a well-insulated open cup. She then observes the temperature of the water fall from 20.0 °C to 18.9 °C over the course of 6 minutes. Use this data, and any information you need from the ALEKS Data resource, to answer the questions below about this reaction: NaCl (s) Na+ (aq) + CI (aq) You can make any reasonable assumptions about the physical properties of the solution. Be sure answers you calculate using measured data are rounded to the correct number of significant digits. Note for advanced students: it's possible the student did not do the experiment carefully, and the values you calculate may not be the same as the known and published values for this reaction. Is this reaction exothermic, endothermic, or neither? If you said the reaction was exothermic or endothermic, calculate the amount of heat that was released or absorbed by the reaction in this case. Calculate the reaction enthalpy ΔΗ per mole of NaCl.…

Calculate the AH for the following reaction: 2 H2S(g) + 3 02(g) → 2 H200 + 2 SO2(g) Use the data provided in the table. Substance AH°† (kJ/mol) H2S (g) -20.15 H20 (I) -285.8 SO2(g) -296.1 Select one: O a. -1350 kJ O b. -1123.5 kJ O c. -980.3 kJ O d. -967.5 kJ

A student dissolves 11.7 g of sodium chloride (NaCl)in 250. g of water in a well-insulated open cup. He then observes the temperature of the water fall from 20.0 °C to 19.4 °C over the course of 4 minutes. Use this data, and any information you need from the ALEKS Data resource, to answer the questions below about this reaction: NaCl(s) Na" (aq) + Cl (aq) You can make any reasonable assumptions about the physical properties of the solution. Be sure answers you calculate using measured data are rounded to 1 significant digit. Note for advanced students: it's possible the student did not do the experiment carefully, and the values you calculate may not be the same as the known and published values for this reaction. exothermic Is this reaction exothermic, endothermic, or neither? endothermic neither If you said the reaction was exothermic or endothermic, calculate the amount of heat that was released or absorbed by the reaction in this case. |kJ kJ Calculate the reaction enthalpy AH, per…

A chemist measures the enthalpy change AH during the following reaction: C6H12O6(s)-2 CO2(g) + 2 C2H5OH (1) AH=-69. kJ Use this information to complete the table below. Round each of your answers to the nearest kJ. reaction ΔΗ x10 4CO2(g) + 4C,H,OH(1) 2C6H12O6(s) 2CO2(g) + 2C,H₂OH(1) C6H12O6(s) ->>> 3C6H12O6(s) 6CO2(g) + 6C₂H₂OH(1) ☐ kJ kJ ☐ kJ

Using the table of standard formation enthalpies that you'll find under the ALEKS Data tab, calculate the reaction enthalpy of this reaction under standard conditions: Fe₂O3(s) + 3 CO(g) →2 Fe(s) + 3 CO₂(g) Round your answer to the nearest kJ. [k kJ x10 X

Nitrogen oxide (NO) has been found to be a key component in many biological processes. It also can react with oxygen to give the brown gas NO2. When one mole of NO reacts with oxygen, 57.0 kJ of heat are evolved. What is ΔH when 7.00 g of nitrogen oxide react? NO(g) + ½O2(g) → NO2(g) ΔH = –57.0 kJ  ______________ kJ

Reactions between acids and bases (neutralization reactions) are exothermic. You have a solution of an acid and a solution of a base, both at 23oC. If you mix the two solutions together, would you expect the final temperature to be greater or less than 23oC?

Use the standard reaction enthalpies given below to determine Hᵒrxn for the following reaction: Given: 2 NO(g) + O2(g) → 2 NO2(g) N2(g) + O2(g) → 2 NO(g) 1/2N2(g) + O2(g) → NO2(g) -150. KJ -117 kJ -333 kJ +115 kJ +238 kJ AH°, rxn AHᵒr = ? rxn +183 kJ AH°rxn = +33 kJ

When a  3.17 gg  sample of solid sodium hydroxide was dissolved in a calorimeter in 100.0 g of water, the temperature rose from 23.9 °C to 32.0 °C. Calculate ΔH (in kJ/mol NaOH) for the following solution process:  NaOH(s)→Na+(aq)+OH−(aq)NaOH(s)→Na+(aq)+OH−(aq)  Assume that it’s a perfect calorimeter and that the specific heat of the solution is the same as that of pure water.