Practice Problem ATTEMPT
For each of the following, calculate
Want to see the full answer?
Check out a sample textbook solutionChapter 18 Solutions
Chemistry
- Substance X has a heat of vaporization of 55.4 kJ/mol at its normal boiling point (423°C). For the process X(l) → X(g) at 1 atm and 423°C, calculate the value of ΔG . Question 23 options: A) 79.6 J/K•mol B) –79.6 J/K•mol C) 0 D) 103 J/K•mol E) –103 J/K•molarrow_forwardCalculate ΔS°298 for the following changes.(a) SnCl4(l) ⟶ SnCl4(g)(b) CS2(g) ⟶ CS2(l)(c) Cu(s) ⟶ Cu(g)(d) H2 O(l) ⟶ H2 O(g)(e) 2H2(g) + O2(g) ⟶ 2H2 O(l)(f) 2HCl(g) + Pb(s) ⟶ PbCl2(s) + H2(g)(g) Zn(s) + CuSO4(s) ⟶ Cu(s) + ZnSO4(s)arrow_forwardChoose the reactions (or processes) that are expected to have a negative value for AS°. (Select all that apply.) O co(g) +202(g) → CO2(g) O SiF (aq) + H2(g)→ 2HF(g)+ SiF4(g) O 1(8)2(s) O 02(g) + 2SO2(g) → 2SO3(g) U 2H;O2(aq) → 2H2O(g)+ O2(g)arrow_forward
- For a reaction with ΔH = 5.2767 kJ/mol and ΔS = 18 J/K•mol, at 20°C, the reaction is: Spontaneous Not Spontaneous At equilibrium. Please type answer note write by hend.arrow_forward#5 Be sure to answer all parts. Determine Δngas for each of the following reactions: (a) MgCO3(s)→MgO(s) + CO2(g) =____mol (b) 2 H2(g) + O2(g)→2 H2O(l) =____mol (c) HNO3(l) + ClF(g)→ClONO2(g) + HF(g) =____molarrow_forwardCalculate T (in K) given ΔG^0= -19.4 kJ/mol and ΔH^0= 69.9 kJ/mol and ΔS^0= 253 J/mol KΔG^0=ΔH^0−TΔS^0 A) 706 B) 1,760 C) 353 D) 0.353 E) 118arrow_forward
- Which of the following is true about entropy? (select all that apply) 1) Is a measure of the distribution of energy in a system at a specific temperature. 2) Is a measure of the number of accessible microstates in a pure substance. 3) Is a property of the universe that increases during a spontaneous process. 4) is a property of a system that may increase or decrease during a spontaneous process.arrow_forwardView Policies Current Attempt in Progress Calculate AG for the reaction given below if the partial pressure of NO2 is 0.229 atm and the partial pressure of N2O4 is 0.464 atm. 2NO2(g) N204(3) AG°298 of this reaction is -5.40 kJ per mole of N,O. T= 298K, R = 8.314 J-mol 1.K-1 Note: Round you answer to 2 decimal places. AG = i kJ mol-1 Where does the system stand relative to equilibrium? O The equilibrium shifts to products. O The system is at equilibrium, so that the reaction will not move. O The equilibrium shifts to reactants. MacBook Air DII 80 888 F9 F10 F5 F6 F7 F8 F3 F4 @ # $ & *arrow_forward(a) Calculate ASuniy for the reaction H,02(1) – H,O,(g) at 175.0°C. Enter your answer in the box provided. J/K mol (b) Is the reaction spontaneous, nonspontaneous, or an equilibrium process? Select the best single answer. spontaneous nonspontaneous an equilibrium processarrow_forward
- Calculate T (in K) given ΔG^0= -59.1 kJ/mol and ΔH^0= 45.8 kJ/mol and ΔS^0= 415 J/mol KΔG^0=ΔH^0−TΔS^0 answer choices: a) 506 b) 0.253 c) 253 d) 84.2 e) 1,260arrow_forwardO WORDS POWERI QUESTION 29 Consider the reaction of decomposition of liquid Ni(CO)4, (AH° = 189,9 kJ/mol and AS° = 500.5 J/mol K) Ni(CO)4 (1) = Ni (s) + 4 CO (g) (a) Determine AG° for the above reaction at 25°C. (b) Assuming standard states for all reactants and products, is the reaction spontaneous at 25°C?arrow_forwardTo extract copper from its ores, Cu,S is heated in air. Cu,S(s) + O,(g) 2Cu(s) + SO,(g) H=-250 kJ In response to each of the following changes in conditions, predict the direction of the shift of the equilibrium position. a) Addition of more 0,(g). b) Compressing the vessel volume in half c) Increasing the temperature. d) Addition of more SO,(g) e) Addition of more Cu(s). JAddition of a catalyst.arrow_forward
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
- Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY