(a)
Interpretation:
Whether the conversion of aluminium oxide is endothermic or exothermic has to be found.
Concept Introduction:
Enthalpy
The value of heat formed in a reaction
If the value obtained for
(b)
Interpretation:
The energy for the production of one mole of aluminum in
Concept Introduction:
Enthalpy
The value of heat formed in a reaction
If the value obtained for
Conversion of
(c)
Interpretation:
The energy for the production of
Concept Introduction:
Enthalpy
The value of heat formed in a reaction
If the value obtained for
Conversion of
From its given mass is,
Want to see the full answer?
Check out a sample textbook solutionChapter 7 Solutions
Modified Mastering Chemistry With Pearson Etext -- Standalone Access Card -- For Fundamentals Of General, Organic, And Biological Chemistry (8th Edition)
- If you measured the rate of reaction at 20°C to be 1.11 x 10-5 M/s when using 0.080 M I1- and 0.040 M S2O82-. Approximately how long will the reaction take if you were to increase the temperature to 30 °C?arrow_forwardFor the following reaction, 4.91 grams of water are mixed with excess chlorine gas. The reaction yields 12.5 grams of hydrochloric acid.chlorine (g) + water (l) hydrochloric acid (aq) + chloric acid (HClO3) (aq) What is the theoretical yield of hydrochloric acid ? grams What is the percent yield of hydrochloric acid ? %arrow_forwardThe following equation shows the reaction of baking soda (NaHCO3) and hydrochloric acid (HCl). NaHCO3+HCl → CO2+H2O+NaCl If you have 3.0 grams of NaHCO3, how many moles of HCl are needed for a complete relation?arrow_forward
- For the following reaction 3 experiments have been run and the data collected is in the following table @ 35 degrees Celsius 2 NO2F(g) ---> 2 NO2(g) + F2(g) Experiment [NO2F], M Rates, M/s 1 0.263 0.168 2 0.349 0.223 3 0.421 0.269 a) How long will it take for a 65% NO2F solution to become a 31% NO2F solution @35 degrees Celsius?(Hint: Use mass ratios and assume ~1g/ml for density of solutions to get you started) b) It has been determined that at 75 degrees Celsius the rate constant is 1.046 s-1. Calculate the activation energy for the decomposition of NO2F. [Hint: ]ln?1?2=?a?(1?2―1?1) c) What is the half-life of a 35% solution of NO2F @ 35 degrees Celsius?arrow_forwardFor ferrocene (C10H10Fe) the enthalpy of sublimation is 73.2 kJ/mol and the entropy of sublimation is 243 J/mol.K. What is the sublimation temperature of ferrocene in degrees Celsius?arrow_forwardUnder what conditions is the entropy H(X) equal to zero?arrow_forward
- A reaction at 23°C has ∆G = 1 kJ mol–¹. Why might this reaction become spontaneous at 37°C?arrow_forwardGiven the balanced equation with an unknown compound represented by X, which compound is represented by X?arrow_forwardIf the phosphorus atom in 3-phosphoglycerate is radioactively labeled, where will the label be when the reaction that forms 2-phosphoglycerate is over?arrow_forward
- To form S²⁻ ions from gaseous sulfur atoms requires 214 kJ/mol, but these ions exist in solids such as K₂S. Explainarrow_forwardA solution contains 2.2 x 10 -3 M in Cu2+ and 0.33 M in LiCN. If the Kf for Cu(CN)42- is 1.0 x 1025 , how much copper ion remains at equilibrium?arrow_forwardPropanamide and methyl acetate have about the same molar mass, both are quite soluble in water, and yet the boiling point of propanamide is 486 K, whereas that of methyl acetate is 330 K. Explain.arrow_forward
- Principles Of Radiographic Imaging: An Art And A ...Health & NutritionISBN:9781337711067Author:Richard R. Carlton, Arlene M. Adler, Vesna BalacPublisher:Cengage Learning