For each system listed in the first column of the table below, decide (ifpossible) whether the change described in the second column willincrease the entropy s of the system, decrease s, or leave s unchanged.If you don't have enough information to decide, check the "not enoughinformation" button in the last column.olbNote for advanced students: you may assume ideal gas and idealsolution behaviour.SystemChangeASO As < 020. L of pure krypton (Kr) gas andO As = 020.0 L of pure carbon dioxideThe gases are mixed, with the(CO,) gas, both at 4 atm andpressure kept constant at 4 atm.AS > 025° C.not enoughinformationO As < 0A solution made of ammoniumbromide (NHBr) in water, atAS = 050. mL of pure water is added tothe solution.O As > 062°C.not enoughinformationO AS< 0300 mL of a solution made from0.5g of NH,Br crystallizes out ofO AS = 0ammonium bromide (NH,Br)the solution, without changing thetemperature.O AS > 0dissolved in water.not enoughinformation

S (entropy) is a state function that measures the randomness or disorder of a system. Entropy change…

For each system listed in the first column of the table below, decide (if possible) whether the change described in the second column will increase the entropy s of the system, decrease s, or leave s unchanged. If you don't have enough information to decide, check the "not enough E information" button in the last column. do Note for advanced students: you may assume ideal gas and ideal solution behaviour. System Change AS O AS< 0 20. L of pure krypton (Kr) gas and 20.0 L of pure carbon dioxide O AS = 0 The gases are mixed, with the (CO,) gas, both at 4 atm and pressure kept constant at 4 atm. O As> 0 25° C. not enough information O As <0 A solution made of ammonium O AS = 0 bromide (NH,Br) in water, at 50. mL of pure water is added to the solution. O AS > 0 62° C. not enough information O AS<0 300 mL of a solution made from 0.5 g of NH Br crystallizes out of O AS = 0 ammonium bromide (NH,Br) the solution, without changing the temperature. O AS> 0 dissolved in water. not enough information

For each system listed in the first column of the table below, decide (if possible) whether the change described in the second column will increase the entropy s of the system, decrease s, or leave s unchanged. If you don't have enough information to decide, check the "not enough E information" button in the last column. do Note for advanced students: you may assume ideal gas and ideal solution behaviour. System Change AS O AS< 0 20. L of pure krypton (Kr) gas and 20.0 L of pure carbon dioxide O AS = 0 The gases are mixed, with the (CO,) gas, both at 4 atm and pressure kept constant at 4 atm. O As> 0 25° C. not enough information O As <0 A solution made of ammonium O AS = 0 bromide (NH,Br) in water, at 50. mL of pure water is added to the solution. O AS > 0 62° C. not enough information O AS<0 300 mL of a solution made from 0.5 g of NH Br crystallizes out of O AS = 0 ammonium bromide (NH,Br) the solution, without changing the temperature. O AS> 0 dissolved in water. not enough information

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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For each system listed in the first column of the table below, decide (if possible) whether the change described in the second column will increase the entropy S of the system, decrease S, or leave S unchanged. If you don't have enough information to decide, check the "not enough information" button in the last column. Note for advanced students: you may assume ideal gas and ideal solution behaviour. System A solution made of sodium bromide (NaBr) in water, at 24°C. A 0.35 M solution of sucrose in water, and a beaker of pure water, both at 37. C 20. L of pure nitrogen (N₂) gas and 20.0 L of pure krypton (Kr) gas, both at 5 atm and -11°C Change 50. ml. of pure water is added to the solution The solution is put into a semipermeable bag immersed in the water, and 50. ml. of pure water flows through the bag into the sucrose solution. The gases are mixed, with the pressure kept constant at 5 atm AS O ASCO 0 43-0 Ο Δ.: 0 O not enough information 0 45 0 not enough information not enough…
Predicting qualitatively how entropy changes with temperature and volume For each system listed in the first column of the table below, decide (if possible) whether the change described in the second column will increase the entropy S of the system, decrease S, or leave S unchanged. If you don't have enough information to decide, check the "not enough information" button in the last column. System A few grams of acetone vapor ((CH₂)₂CO). A few moles of helium (He) gas. A few moles of helium (He) gas. Predicting qualit Change The acetone condenses to a liquid at a constant temperature of -12.0 °C. The helium is heated from -19.0 °C to 59.0 °C while the volume is held constant at 10.0 L. The helium is heated from 0.0 °C to 3.0 °C and is also compressed from a volume of 13.0 L to a volume of 10.0 L. tion ΔS O AS 0 O not enough information Ο ΔS 0 not enough information AS 0 not enough information ||
In a constant‑pressure calorimeter, 55.0 mL55.0 mL of 0.900 M H2SO40.900 M H2SO4 was added to 55.0 mL55.0 mL of 0.250 M NaOH.0.250 M NaOH. The reaction caused the temperature of the solution to rise from 22.90 ∘C22.90 ∘C to 24.60 ∘C.24.60 ∘C. If the solution has the same density and specific heat as water (1.00 g/mL1.00 g/mL and 4.184 J/(g⋅°C),4.184 J/(g⋅°C), respectively), what is Δ?ΔH for this reaction (per mole of H2OH2O produced)? Assume that the total volume is the sum of the individual volumes.
For each chemical reaction listed in the first column of the table below, predict the sign (positive or negative) of the reaction entropy AS, If it's not Ixn" possible to decide with the information given, check the "not enough information" button in the last column. Note for advanced students: Assume the temperature remains constant. Assume all gases and solutions are ideal. reaction sign of reaction entropy AS 0 AS rxn not enough information. AS 0 AS rxn not enough information. AS 0 not enough information. ?
Classify each of the reactions according to one of the four reaction types summarized in the table below. Reaction Spontaneous Process? Турe ΔΗ' (system) AS" (system) (Standard Conditions) 1 Exothermic, 0 Spontaneous at all temperatures. AS (universe) > 0. Exothermic, 0 Positive, > 0 Depends on relative magnitudes of AH and AS°. Spontaneous at higher temperatures. 3 4 Endothermic, > 0 Negative, < 0 Not spontaneous at any temperature. AS" (universe) <0. C,H12 O6 (s) + 6 O2(g) → 6 CO2 (g) + 6 H2O(L) a. A,H° = -673 kJ/mol-rxn A,S° = 60.4 J/K · mol-rxn O Spontaneous at all temperatures. O Spontaneous at lower temperatures. Spontaneous at higher temperatures. ONot spontaneous at any temperature. b. FeO(s) + C(graphite) → Fe(s) + CO(g) A,H° = 153.2 kJ/mol-rxn A,S' = 160.4 J/K · mol-rxn O Spontaneous at all temperatures. O Spontaneous at lower temperatures. Spontaneous at higher temperatures. ONot spontaneous at any temperature.
the free energy for a reaction can be related to the equilibriumconstant through the formula below.K = e (-ΔG° / RT)Therefore if Kc for a reaction is known, Go can be determined, or vice versa. Furthermore, ifyou have the value for Go at two different temperatures, you can calculate H and S throughthe familiar equation for Gibbs energy below, since you have two unknowns but also twoequations.G = H – T SIn this lab you will be studying the solubility of borax (Na2B4O5(OH)4*8H2O), a slightly solublesodium salt, at two different temperatures. When solid borax is added to water, theequilibrium below is established.Na2B4O5(OH)4*8H2O (s) 2 Na+ (aq) + B4O5(OH)42- (aq) + 8 H2O(l)If you measure the concentrations for those substances that show up in the reaction quotient,then the Kc for the reaction at that temperature can be calculated. In this lab, theconcentration of borate ion (B4O5(OH)42-) in solution will be measured by titration with standardhydrochloric acid according to the…
For each system listed in the first column of the table below, decide (if possible) whether the change described in the second column will increase the entropy S of the system, decrease S, or leave S unchanged. If you don't have enough information to decide, check the "not enough information" button in the last column. Note for advanced students: you may assume ideal gas and ideal solution behaviour. System A liter of seawater at 15°C. A 0.35 M solution of sucrose in water, and a beaker of pure water, both at 37. °C. 20. L of pure oxygen (0₂) gas and 20.0 L of pure carbon dioxide (CO₂) gas, both at 5 atm and 22°C. Change The seawater is passed through a reverse-osmosis filter, which separates it into 750. mL of pure water and 250. mL of brine (very salty water). The solution is put into a semipermeable bag immersed in the water, and 50. mL of pure water flows through the bag into the sucrose solution. The gases are mixed, with the pressure kept constant at 5 atm. X AS AS 0 not enough…
For each system listed in the first column of the table below, decide (if possible) whether the change described in the second column will increase the entropy S of the system, decrease S, or leave S unchanged. If you don't have enough information to decide, check the "not enough information" button in the last column. Note for advanced students: you may assume ideal gas and ideal solution behaviour. System Change AS O AS 0 salty water). not enough information O AS 0 not enough information O AS 0 and 47°C. pressure kept constant at 4 atm. not enough information
es) Qualitatively predicting reaction entropy For each chemical reaction listed in the first column of the table below, predict the sign (positive or negative) of the reaction entropy AS If it's not possible to decide with the information given, check the "not enough information" button in the last column. Note for advanced students: Assume the temperature remains constant. Assume all gases and solutions are ideal. reaction N₂(g) + 3H₂(g) → 2NH, (e) 4Fe()+30.)- 2Fe₂O, (s) N. (3), (g) 2NH, (g) sign of reaction entropy 04 ron reaction <<0 50 not enough information. 45x 250 <<0 not enough information. 450 50 not enough information. Using the general properties of Gibbs free energy The standard reaction free energy AG" --835. kJ for this reaction: 2 Al(s) + Fe₂O3(s)-Al₂O3(s) + 2 Fe(s) Use this information to complete the table below. Round each of your answers to the nearest kJ. BALAKEN F04 AGO Focus
For each system listed in the first column of the table below, decide (if possible) whether the change described in the second column will increase the entropy S of the system, decrease S, or leave S unchanged. If you don't have enough information to decide, check the "not enough information" button in the last column. Note for advanced students: you may assume ideal gas and ideal solution behaviour. System Change AS AS 0 water and 250. mL of brine (very salty water). not enough information AS 0 both at 5 atm and 6° C. not enough information AS 0 not enough information OO O
For each system listed in the first column of the table below, decide (if possible) whether the change described in the second column will increase the entropy S of the system, decrease S, or leave S unchanged. If you don't have enough information to decide, check the "not enough information" button in the last column. System A few grams of liquid acetone ((CH₂)₂CO). A few moles of carbon dioxide (CO₂) gas. A few moles of helium (He) gas. Change The acetone is cooled from 78.0 °C to 9.0 °C. The carbon dioxide is heated from -15.0 °C to 46.0 °C and also expands from a volume of 7.0 L to a volume of 14.0 L. The helium is cooled from 70.0 °C to 8.0 °C while the volume is held constant at 11.0 L. AS O AS 0 O AS 0 not enough information O not enough information O O AS 0 not enough information 5
For each system listed in the first column of the table below, decide (if possible) whether the change described in the second column will increase the entropy S of the system, decrease S, or leave Sunchanged. If you don't have enough information to decide, check the "not enough information" button in the last column. System A few moles of carbon dioxide (CO₂) gas. A few grams of liquid acetone ((CH₂)₂CO). A few moles of helium (He) gas. Change The carbon dioxide is heated from 5.0 °C to 64.0 °C and is also compressed from a volume of 14.0 L to a volume of 8.0 L. The acetone is heated from -12.0 °C to 89.0 °C. The helium is heated from -14.0 °C to 44.0 °C while the volume is held constant at 9.0 L. X O AS 0 not enough O information O AS 0 not enough information AS 0 O O O O AS O not enough O information