<9:23Predicting qualitatively how entropy changes with mixing and separationSystem20. L of pure argon (Ar) gas and20.0 L of pure krypton (Kr) gas,both at 1 atm and 44°C.A liter of seawater at 15°C.For each system listed in the first column of the table below, decide (if possible) whether the change described in the seconwill increase the entropy S of the system, decrease S, or leave S unchanged. If you don't have enough information to decid"not enough information" button in the last column.Note for advanced students: you may assume ideal gas and ideal solution behaviour.A 0.35 M solution of sucrose inwater, and a beaker of pure water,both at 37.°C.pital ParkingToday9:22 PMpital ParkingChangeThe gases are mixed, with thepressure kept constant at 1 atm.The seawater is passed through areverse-osmosis filter, whichseparates it into 750. mL of purewater and 250. mL of brine (verysalty water).The solution is put into asemipermeable bag immersed in thewater, and 50. mL of pure waterflows through the bag into thesucrose solution.O AS < 0AS = 0ASOAS > 0inot enoughinformationAS < 0AS = 0O AS < 0AS > 0not enoughinformationO AS > 0AS = 0Editnot enoughinformation17●●●€

For each system listed in the first column of the table below, decide (if possible) whether the change described in the seco will increase the entropy S of the system, decrease S, or leave S unchanged. If you don't have enough information to deci "not enough information" button in the last column. Note for advanced students: you may assume ideal gas and ideal solution behaviour. System 20. L of pure argon (Ar) gas and 20.0 L of pure krypton (Kr) gas, both at 1 atm and 44°C. 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. Change The gases are mixed, with the pressure kept constant at 1 atm. 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. AS O AS <0 O O AS = 0 AS > 0 not enough information O AS <0 O AS=0 O Ο O O AS 0 not enough information ΔS < 0 AS=0 AS > 0 not enough O information €

For each system listed in the first column of the table below, decide (if possible) whether the change described in the seco will increase the entropy S of the system, decrease S, or leave S unchanged. If you don't have enough information to deci "not enough information" button in the last column. Note for advanced students: you may assume ideal gas and ideal solution behaviour. System 20. L of pure argon (Ar) gas and 20.0 L of pure krypton (Kr) gas, both at 1 atm and 44°C. 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. Change The gases are mixed, with the pressure kept constant at 1 atm. 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. AS O AS <0 O O AS = 0 AS > 0 not enough information O AS <0 O AS=0 O Ο O O AS 0 not enough information ΔS < 0 AS=0 AS > 0 not enough O 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 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. ?
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 mixture of oxygen (O₂) gas and hydrogen (H₂) gas at 3 atm and 7°C. A liter of seawater at 15°C. 300 mL of a solution made from sodium iodide (Nal) dissolved in water. Change An additional 2.0 L of pure H₂ gas is added to the mixture, with the pressure kept constant at 3 atm. 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). 0.5 g of Nal crystallizes out of the solution, without changing the temperature. O O AS 0 O As AS 0 not enough information O not enough. information O AS 0 not enough…
To prepare the buffer, a total volume of 500 mL is required. The stock solution of the weak base is available at 1 gallon with a concentration of 0.45 M. (Remember the lesson on dilution: C1V1=C2V2) 4. How many mL should be taken from the stock solution to prepare the desired buffer solution? (round off answer to 2 decimal places)
Consider two separate containers: container A holds 65.3 g of carbon dioxide gas, container B holds 48.2 g of oxygen gas. The pressure of both gases is 1 bar and the temperature is 298.15 K. Both gases can be treated as ideal gases. Parta) Determine the sum of the entropies of the gases in both separated containers. Part b) Calculate the total entropy of the gas mixture, which is obtained after mixing both gases in one container, while maintaining a constant temperature and pressure. Part c) The gas mixture from part b) is expanded in an isobaric process until its volume has increased by a factor of 2.5. Calculate the entropy of the gas mixture after this process is completed.
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 not enough information AS 0 both at 37.°C. flows through the bag into the sucrose solution. not enough information AS 0 and 22°C. pressure kept constant at 2 atm. not enough information
Which of the following reactions will have a positive change in entropy (AS)? *) N;O4 (g) 2 NO2 (2) 2 CO. (2) b) 2 CO (g) + 0(g) d) CaO () + CO, () ) CO. (0 - CO, () CACO, ()
For eac em 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 moles of carbon dioxide (CO₂) gas. A few grams of liquid ammonia (NH3). A few moles of helium (He) gas. Change The carbon dioxide is cooled from 73.0 °C to 8.0 °C while the volume is held constant at 8.0 L. The ammonia evaporates at a constant temperature of 53.0 °C. The helium is cooled from 66.0 °C to 8.0 °C and is also compressed from a volume of 13.0 L to a volume of 10.0 L. ΔS AS 0 not enough information AS 0 not enough information AS 0 not enough information ( [U::: OL E
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 CO A solution made of ammonium bromide (NH Br) in water, at O AS = 0 50. mL of pure water is added to the solution. O AS >0 27°C. not enough information O AS 0 t 27 °C. not enough information O AS 0 argon (Ar) gas at 2 atm and 8°C. pressure kept constant at 2 atm. not enough information
If a chemical reaction has a negative reaction entropy, it does not occur spontaneously. Q True Q False Q Search | PSIRITE AIRIT FIF 美美LI 黃 ORIELT O Core 菜单 44 ******** ** ** 24 生事
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 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.