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 1.0 g of potassium iodide (KI) and 2.0 L of pure water at 27 °C. A liter of seawater at 15°C. 20. L of pure hydrogen (H₂) gas and 20.0 L of pure argon (Ar) gas, both at 1 atm and 10°C. Change The potassium iodide is dissolved in the water. 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 gases are mixed, with the pressure kept constant at 1 atm. X AS O AS < 0 AS = 0 AS > 0 not enough information AS < 0 AS = 0 O AS > 0 not enough information O AS < 0 AS = 0 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 1.0 g of potassium iodide (KI) and 2.0 L of pure water at 27 °C. A liter of seawater at 15°C. 20. L of pure hydrogen (H₂) gas and 20.0 L of pure argon (Ar) gas, both at 1 atm and 10°C. Change The potassium iodide is dissolved in the water. 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 gases are mixed, with the pressure kept constant at 1 atm. X AS O AS < 0 AS = 0 AS > 0 not enough information AS < 0 AS = 0 O AS > 0 not enough information O AS < 0 AS = 0 AS > 0 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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I took out an ice cube from the -10°C freezer and wanted to add it to the drink, but was immediately called away and forgot to add it to the drink. When I came back, I saw that the ice cube had completely melted into water at a room temperature of 25°C. Assuming that the ice cube is exactly 2 mole, and regard this ice cube as a system, try to calculate the change of enthalpy and entropy (△H,△S) of the system. Let the heat capacity of water be 25 JK-1mol-1, the heat capacity of ice be 15 JK-1mol-1 and the heat of melting of ice △Ĥfus = 6 kJ/mol.
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 not enough information AS 0 and 37°C. pressure kept constant at 1 atm. not enough information O O
how do i solve this?
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
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
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…
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 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.
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 water. not enough information AS 0 14°C. pressure kept constant at 1 atm. not enough information O AS 0 both at 37.°C. flows through the bag into the sucrose solution. not enough O information ?