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 Sof 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.SystemChangeASAS < 0The seawater is passed through areverse-osmosis filter, whichAS = 0A liter of seawater at 15°C.separates it into 750. mL of pureAS > 0water and 250. mL of brine (verysalty water).not enoughinformationAS < 020. L of pure helium (He) gas andAS = 0The gases are mixed, with the20.0 L of pure krypton (Kr) gas,pressure kept constant at 3 atm.AS > 0both at 3 atm and 7°C.not enoughinformationAS < 01.0 g of ammonium chlorideAS = 0(NH,CI) and 2.0 L of pure waterThe ammonium chloride is dissolvedin the water.4AS > 0at 38 °C.not enoughinformation

Entropy is measurement of Disorder. If a system tends towards more randomness Entrypy increases and…

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 The seawater is passed through a reverse-osmosis filter, which O AS = 0 A liter of seawater at 15°C. separates it into 750. mL of pure O As > 0 water and 250. mL of brine (very salty water). not enough O information O AS < 0 20. L of pure helium (He) gas and 20.0 L of pure krypton (Kr) gas, O AS = 0 The gases are mixed, with the pressure kept constant at 3 atm. O As > 0 both at 3 atm and 7°C. not enough information O As < 0 1.0 g of ammonium chloride O AS = 0 (NH Cl) and 2.0 L of pure water The ammonium chloride is dissolved in the water. O As > 0 at 38 °C. not enough O information O O O O|0 O O 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. Note for advanced students: you may assume ideal gas and ideal solution behaviour. System Change AS AS < 0 The seawater is passed through a reverse-osmosis filter, which O AS = 0 A liter of seawater at 15°C. separates it into 750. mL of pure O As > 0 water and 250. mL of brine (very salty water). not enough O information O AS < 0 20. L of pure helium (He) gas and 20.0 L of pure krypton (Kr) gas, O AS = 0 The gases are mixed, with the pressure kept constant at 3 atm. O As > 0 both at 3 atm and 7°C. not enough information O As < 0 1.0 g of ammonium chloride O AS = 0 (NH Cl) and 2.0 L of pure water The ammonium chloride is dissolved in the water. O As > 0 at 38 °C. not enough O information O O O O|0 O O O

Physical Chemistry

2nd Edition

ISBN:9781133958437

Author:Ball, David W. (david Warren), BAER, Tomas

Publisher:Ball, David W. (david Warren), BAER, Tomas

Chapter4: Gibbs Energy And Chemical Potential

Section: Chapter Questions

Problem 4.1E: List the sets of conditions that allow dS, dU, and dH of a process in a system act as a spontaneity...

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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.
Calculating Thermodynamic Values from an Equilibrium ConstantBackgroundAs discussed in lecture, 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…
Use the calibration curve data provided to determine the entropy (ΔS, in J/K) associated with dissolving KNO3. please put the answer in this format: ____x10___power ___units *use correct sig figs
Benzene (C6H6) has a melting point of 5.50C and an enthalpy of fusion of 10.04kJmol-1 at 25.00C. The molar heat capacities at constant pressure for solid and liquid benzene are 100.4JK-1mol-1 and 133.0JK-1mol-1, respectively. Calculate the change of entropy of system and change of entropy of the surrounding at 100C for the reaction of C6H6(l)---->C6H6(s)
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Assume that solutions of ethylbenzene : benzene behave ideally. a) Calculate the entropy of mixing if 40 g of ethylbenzene is mixed into 50g of benzene.b) At room temperature (298 K), what is ΔmixG for mixing 40g of ethylbenzene (PhEt) and 50g of benzene (PhH)?c) Would you notice a temperature change associated with the process in parts a) & b)?d) Instead, you mix 40g of benzyl alcohol (PhMeOH) into 50g of benzene (PhH). Let’s denote the difference between this process and the process in part b) as: ΔΔG = ΔmixG [PhMeOH ∶ PhH] − ΔmixG [PhEt ∶ PhH] What do you expect the sign of ΔΔG to be? (ΔΔG<0, ΔΔG≈0, or ΔΔG>0)Briefly justify your answer.
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If the change of entropy of the surrounding increased by 0.27 KJ/mol.K due t oa reactiob carried out at a 25C tempreture ,which one of these following terms apply to the reaction?cricle all the correct answers. Exergonic endergonic exothermic endothermic
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