Match the words in the left column to the appropriate blanks in the sentences on the right. Reset H fewer particles will have the higher standard occupy a smaller volume entropy at 25 °C. C,H10(1) This can best be explained because a greater number of particles has a greater number of microstates available C,H10(9) the gas phase has more degrees of freedom associated with movement liquid and aqueous phases have more degrees of freedom associated with movement more complex molecules have more vibrational degrees of freedom

Match the words in the left column to the appropriate blanks in the sentences on the right. Reset H fewer particles will have the higher standard occupy a smaller volume entropy at 25 °C. C,H10(1) This can best be explained because a greater number of particles has a greater number of microstates available C,H10(9) the gas phase has more degrees of freedom associated with movement liquid and aqueous phases have more degrees of freedom associated with movement more complex molecules have more vibrational degrees of freedom

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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Which of the following statements is TRUE regarding entropy? a. The entropy of the universe decreases after the occurrence of a spontaneous change. b. The entropy of any substance at temperatures above absolute zero is positive. c. The entropy is zero for a pure, perfect crystal at 0 °C. d.It is possible to determine the standard molar entropy of substances due to the second law of thermodynamics.
Which of the following statements is false? a. Entropies of ionic solids that have similar formulas are larger when the attractions among the ions are stronger. b. Entropy usually decreases when a gas is dissolved in a liquid. c. Entropy usually increases when a pure liquid or solid dissolves in a solvent. d. Entropies of more complex molecules are larger than those of simpler molecules. e. Entropies of gases are usually much larger that those of liquids, which in turn are usually larger than those of solids.
Which reaction is accompanied by an increase in entropy? Ba(OH)2(s) + 2 HCl(g) BaCl₂x2H₂O(s) C12H20()+17 O₂(g) NH4Cl(s) NH3(g) + HCI(g) (CH3)2CO(l) +4Ozg) ® 3CO2g) + 3H2O()) 2 C₂H2(g) + 5O2(g) 4CO2(g) + 2 H₂O(s) 12 CO₂(g) + 10 H₂O()
Benzene is a liquid under standard conditions. The standard enthalpy and entropy changes for the evaporation of liquid benzene to form benzene vapor are +33.9 kJ/mol and 96.3 J/mol · K, respectively. If liquid benzene is placed in a closed container at 78.85°C, which of the following statements is true? The liquid cannot attain equilibrium with its vapor in a closed container. a. b. The liquid will evaporate completely. Liquid benzene will evaporate until the vapor pressure is 1 bar. d. Liquid benzene will not evaporate. e. Liquid and vapor-phase benzene cannot coexist at temperatures greater than or equal to 78.85°C.
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What can be said about an endothermic reaction with a negative entropy change? The reaction is spontaneous at all temperatures. spontaneous at high temperatures. spontaneous at low temperatures. spontaneous in the reverse direction at all temperatures. nonspontaneous in either direction at all temperatures. What can be said about an endothermic reaction with a negative entropy change? spontaneous at all temperatures. spontaneous at high temperatures. spontaneous at low temperatures. spontaneous in the reverse direction at all temperatures. nonspontaneous in either direction at all temperatures.
chapter 12: 13) Chlorofluorocarbons (CFCs) are no longer used as refrigerants because they help destroy the ozone layer. Trichlorofluoromethane (CCl3F) boils at 23.8°C, and its molar heat of vaporization is 24.8 kJ/mol. Calculate the molar entropy of evaporation of CCl3F(ℓ).
In which of the following processes would the entropy of the system increase? A liquid forming from a gas. A solid forming from a gas. The number of gas molecules increasing during a chemical reaction. A solid precipitating from a solution.
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 Change AS O AS 0 not enough information O AS 0 not enough O information O AS 0 not enough O information Explanation Check O 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use I Privacy Center | O O
20. The standard enthalpy of vaporization of methanol is 35.2 kJ/mol at its normal boiling point, 64.6°C. What is the standard change in entropy for the vaporization of methanol at its normal boiling point? A. 104 J/(mol· K) B. 35.2 J/(mol· K) C. 0.544 J/(mol· K) D. 544 J/(mol· K) E. 0.104 J/(mol· K)
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Determine the total entropy change when 15.00 g of ice at –15°C is heated to 75°C. The molar heat of fusion of ice is 6.02 kJ/mol, and its specific heat is 2.11 J/g °C. The specific heat of water is 4.184 J/g °C