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Physical Chemistry
- 2. You have a two level system and three particles that occupy this system. The total energy is not fixed. Energy kgT 2 kgT Macrostate 1 Macrostate 2 Macrostate 3 Macrostate 4 Figure 2: A diagram of the three macrostates for the two level system. The bottom energy level has energy S and the top energy level has energy (3) (a) Draw into Figure 2 the missing three macrostates. (4) (b) Determine the partition function, q, for this system. (Ь)arrow_forwardSo, when there is no value given for a substance O2, you are to assume that it is zero?arrow_forward6.24 Consider this reaction: 2CH,OH(I) + 302(g) 4H,0(1) + 2CO2(8) AH = -1452.8 kJ/mol |3Darrow_forward
- Iron(III) sulfate, Fe2(SO4)3, decomposes upon heating to make iron(III) oxide and sulfur trioxide by the following reaction: Fe2(SO4)3{s) = Fe,Og(s) + 3 SO3(g) What is the variance of the system? OF= 2 OF= 3 OF=1 OF= 0arrow_forward7- Given the following data: AG --51 kJ 2H: (g) + C (s) → CHa (g) 2H2 (g) + O: (g) - 2H:0 (1) C (s) + 02 (g) → CO: (g) Calculate AG° for CH4 (g) + 202 (g)CO2 (g) + 2H;0 (). AG-474 kJ AG°--394 kJarrow_forwardThe diagram shows four states of a system, each with differentinternal energy, E. (a) Which of the states of the systemhas the greatest internal energy? (b) In terms of the ΔEvalues, write two expressions for the difference in internalenergy between State A and State B. (c) Write an expressionfor the difference in energy between State C and State D.(d) Suppose there is another state of the system, State E,and its energy relative to State A is ΔE = ΔE1 + ΔE4. Wherewould State E be on the diagram?arrow_forward
- 6) Calculate the final temperature of a sample of carbon dioxide of mass 16.0 g that is expanded reversibly and adiabatically from 500 cm³ at 298.15 K to 2.00 dm³.arrow_forwardThe resulting equation is: (Be sure that the answer field changes from light yellow to dark yellow before releasing your answer.) T = Drag and drop your selection from the following list to complete the answer: (AG-ΔΗΔ S) (AG-ΔΗΔS) AS (AG-ΔΗ) (AG-ΔΗ) AS AS ASarrow_forwardSnitial Sinal В Sfinal A Sanal Sfinal 13V3 Based on the image, which system has a AS of zero?arrow_forward
- Calculate AH° and AE° for the following reactions at 25 °C. Use standard enthalpies of formation from the table below. Round your answers to four significant digits. Substance AH; (kJ mol-1) Substance AH: (kJ mol-1) Co,(g) -393.5 226.75 Ni(g) C,H,(g) (CH3),CO(/) H,O(g) HC(g) NH,(g) -46.19 -248.1 NH.CIG) N,O(g) O(g) -315.4 -241.8 81.57 -92.30 (a) 2C2H2(g) + 502(g)4CO2(g) + 2H20(g) AH° = i kJ AF° = kJ eTextbook and Media (b) C2H2(g) + 5N20(g) → 2CO2(g) + H2O(g) + 5N2(3) AH° = i kJ AE° = i kJarrow_forwardGiven that H, (g) + F, (g) –→ 2 HF(g) AHixn -546.6 kJ 2 H, (g) + O,(g) 2 H, O(1) AHixn -571.6 kJ calculate the value of AHxn for 2F, (g) + 2H,O(1) –→ 4 HF(g) + O,(g) > rxnarrow_forwardHow does the answer in the first example include a 0 when its not a sig fig. but in the second one it does notarrow_forward
- Physical ChemistryChemistryISBN:9781133958437Author:Ball, David W. (david Warren), BAER, TomasPublisher:Wadsworth Cengage Learning,