5)For each system listed in the first column of the table below, decide (if possible) whether the change described in the second columnwill 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.Note for advanced students: you may assume ideal gas and ideal solution behaviour.ChangeSystem20. 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 an 15°C.A 0.35 M solution of sucrose inwater, and a beaker of pure water,both at 37. CThe gases xed, with thepressure keptstant 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 asemipermeabile bag immersed in thewater, and 50. mL of pure waterflows through the bag into thesucrose solution.ASDAS < 0AS-048>0not enoughinformationAS <0AS-0AS Onot enoughinformationAS < 0AS-0AS 0not enoughinformationMacBook AirFocus

Entropy is a measure of the degree of randomness of particles in a particular state of a substance.…

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. 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 xed, with the pressure keptstant 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 sucrese solution. AS AS <0 AS-0 AS >O not enough information AS < 0 AS-0 AS O not enough information AS < 0 AS-0 ASO 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 Sunchanged. 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 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 xed, with the pressure keptstant 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 sucrese solution. AS AS <0 AS-0 AS >O not enough information AS < 0 AS-0 AS O not enough information AS < 0 AS-0 ASO 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 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…
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An amount of 2 mole of CO was in the small cubical container of length, (I= a) at 57°C. The gas was taken out completely from the small container and put into large container (1 = 2a) at the same temperature. What is the change in entropy, if it is assumed that the process is reversible and gas is behaving as an ideal gas? A.34.58 J/K B. -34.58 J/K C. -11.53 J/K D. +11.53 J/K The change in entropy accompanying the heating of one mole of helium gas (Cv, n = 3R/2), assumed ideal, from a temperature of 1000 K at constant pressure. (In 2 = 0.7) A. 4.2 cal/K B. 7.0 cal/K C. 2.1 cal/K D. 3.5 cal/K
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
The change in entropy, ASxn, is related to the the change in the number of moles of gas molecules, Angas. Determine the change in the moles of gas for each of the reactions and decide if the entropy increases, decreases, or has little or no change. А. 2 H, (g) + O,(g) 2 H,O(1) An gas The entropy, ASixn, mol O has little or no change. O decreases. O increases. В. H,0,(1) H, (g) + O,(g) The entropy, A.SPxn, Angas = mol O increases. O decreases. has little or no change. O O
E The Carnot cycle, which is a particular example of a thermodynamic cycle, allows determining the efficiency of a "heat-to-work" engine. Clausius used this to find the macroscopic definition of entropy as the heat change of the system at a particular temperature. Th and T are the high and low qh and q for the heats transferred at these temperatures. When plotted in a T-S temperatures and representation, entropy only changes in the processes (steps) where heat is added or removed. However, when plotting the Carnot cycle in the P-V representation it is clear that work is done (on or by) the system in each of the 4 processes of the cycle. a) Give the names of the 2 processes of the Carnot cycle (an engine) in which the surroundings do work on the system. Indicate the condition(s) of the walls for these processes. b) Consider the microscopic, i.e., Boltzmann's, definition of entropy for an ideal gas. Briefly discuss what needs to be satisfied so that there is no change of entropy during a…
Recall that for a monoatornic ideal gas, CV = (3/2) *R . If an equal number of moles of any three ideal gases are mixed, what is the change in entropy?
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
a) Formulate the second law of thermodynamics. b) Consider the statements below. Answer them and give brief explanations. a. An explosive (e.g. C7H5N3O6) reacts with oxygen, the result is CO2 (g), H2O (g) and N2 (g). Is there an increase or decrease of Entropy after the reaction occurred? b. Colloquially, people say that during the cold months of the year, the “cold” is creeping into the warmer house. Is this statement true considering the 2nd law?
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 moles of carbon dioxide (CO₂) gas. A few grams of liquid ammonia (NH3). A few moles of carbon dioxide (CO₂) gas. Change The carbon dioxide expands from a volume of 10.0 L to a volume of 13.0 L while the temperature is held constant at 57.0 °C. The ammonia evaporates at a constant temperature of 11.0 °C. The carbon dioxide is cooled from 87.0 °C to -2.0 °C and is also expanded from a volume of 8.0 L to a volume of 11.0 L. AS AS 0 not enough information AS 0 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.