Clicker Questions Chapter 19 Barbara Mowery York College

Clicker Questions Chapter 19 Barbara Mowery York College

Clicker Questions Chapter 19 Barbara Mowery York College 2015 Pearson Education, Inc. Which process is not spontaneous at 25 degrees Celsius? a. b. c. d.

the melting of an ice cube the sublimation of dry ice the boiling of liquid nitrogen the freezing of ethyl alcohol 2015 Pearson Education, Inc. Which process is not spontaneous at 25 degrees Celsius? a. b. c.

d. the melting of an ice cube the sublimation of dry ice the boiling of liquid nitrogen the freezing of ethyl alcohol 2015 Pearson Education, Inc. All spontaneous processes are a. reversible. b. isothermal. c. irreversible.

d. exothermic. 2015 Pearson Education, Inc. All spontaneous processes are a. reversible. b. isothermal. c. irreversible. d. exothermic. 2015 Pearson Education, Inc. Entropy is a measurement of the _______ of a system. a.

b. c. d. randomness internal energy temperature polarity 2015 Pearson Education, Inc. Entropy is a measurement of the _______ of a system. a.

b. c. d. randomness internal energy temperature polarity 2015 Pearson Education, Inc. Entropy (S) is a state function, so the change in entropy is given by Sfinal _____ Sinitial.

a. b. c. d. + / 2015 Pearson Education, Inc. Entropy (S) is a state function, so the change in entropy is

given by Sfinal _____ Sinitial. a. b. c. d. + / 2015 Pearson Education, Inc. The entropy of a sample of

CO2 increases upon heating because all three types of molecular motion increase. a. True b. False 2015 Pearson Education, Inc. The entropy of a sample of CO2 increases upon heating because all three types of molecular motion increase. a. True b. False

2015 Pearson Education, Inc. The entropy of a sample of Ne increases upon heating because all three types of molecular motion increase. a. True b. False 2015 Pearson Education, Inc. The entropy of a sample of Ne increases upon heating

because all three types of molecular motion increase. a. True b. False 2015 Pearson Education, Inc. The Second Law of Thermodynamics says that the entropy of the universe _______ whenever a spontaneous process occurs. a. b.

c. d. increases decreases remains unchanged reaches equilibrium 2015 Pearson Education, Inc. The Second Law of Thermodynamics says that the entropy of the universe _______ whenever a

spontaneous process occurs. a. b. c. d. increases decreases remains unchanged reaches equilibrium 2015 Pearson Education, Inc. An automobile being driven

from west to east is experiencing _______ motion. a. b. c. d. kinetic rotational vibrational translational 2015 Pearson Education, Inc.

An automobile being driven from west to east is experiencing _______ motion. a. b. c. d. kinetic rotational vibrational translational 2015 Pearson Education, Inc.

Changes in a molecules bond lengths or bond angles are examples of _______ motion. a. b. c. d. kinetic rotational vibrational translational

2015 Pearson Education, Inc. Changes in a molecules bond lengths or bond angles are examples of _______ motion. a. b. c. d. kinetic rotational vibrational translational

2015 Pearson Education, Inc. When a molecule spins like a top, it is undergoing _______ motion. a. b. c. d. kinetic vibrational translational

rotational 2015 Pearson Education, Inc. When a molecule spins like a top, it is undergoing _______ motion. a. b. c. d. kinetic vibrational

translational rotational 2015 Pearson Education, Inc. k = Boltzmann constant. W = the number of microstates. S = entropy. Which is true? a. b. c. d.

S=kW S=k/W S = k ln W S = kW 2015 Pearson Education, Inc. k = Boltzmann constant. W = the number of microstates. S = entropy. Which is true? a.

b. c. d. S=kW S=k/W S = k ln W S = kW 2015 Pearson Education, Inc. Entropy decreases when a. b.

c. d. a liquid becomes a gas. a solid becomes a liquid. a gas becomes a solid. the number of moles of gas increases. 2015 Pearson Education, Inc. Entropy decreases when a. b.

c. d. a liquid becomes a gas. a solid becomes a liquid. a gas becomes a solid. the number of moles of gas increases. 2015 Pearson Education, Inc. Which process does not illustrate a decrease in entropy?

a. Na(s) + Br2(l) 2 NaBr(s) b. CaCO3(s) CaO(s) + CO2(g) c. NH3(aq) +H2S(g) (NH4)2S(aq) d. AgNO3(aq) + KCl(aq) AgCl(s) + KNO3(aq) 2015 Pearson Education, Inc. Which process does not illustrate a decrease in entropy? a. Na(s) + Br2(l) 2 NaBr(s) b. CaCO3(s) CaO(s) + CO2(g) c. NH3(aq) +H2S(g) (NH4)2S(aq) d. AgNO3(aq) + KCl(aq)

AgCl(s) + KNO3(aq) 2015 Pearson Education, Inc. The Third Law of Thermodynamics says that the entropy of a pure, perfect crystal is _______ at absolute zero (zero Kelvins). a. increasing b. decreasing c. infinite d. zero 2015 Pearson Education, Inc. The Third Law of

Thermodynamics says that the entropy of a pure, perfect crystal is _______ at absolute zero (zero Kelvins). a. increasing b. decreasing c. infinite d. zero 2015 Pearson Education, Inc. The notation, pressure, temperature, and units for reporting Standard Molar Entropies are a.

b. c. d. Sstd; 1 atm; 0 C; kJ/mol-C. S; 1 atm; 298 K; J/mol-K. S; 0 atm; 298 K; J/mol-K.S; 0 atm; 298 K; J/mol-K. S; 0 atm; 298 K; J/mol-K.Sf; 1 atm; 0 C; kJ/C. 2015 Pearson Education, Inc. The notation, pressure, temperature, and units for reporting Standard Molar

Entropies are a. b. c. d. Sstd; 1 atm; 0 C; kJ/mol-C. S; 1 atm; 298 K; J/mol-K. S; 0 atm; 298 K; J/mol-K.S; 0 atm; 298 K; J/mol-K. S; 0 atm; 298 K; J/mol-K.Sf; 1 atm; 0 C; kJ/C. 2015 Pearson Education, Inc. Which is not a standard

condition for reporting Standard Free Energy values? a. is 0 for pure liquids and solids, regardless of their state. b. is reported for solutions at 1 M. c. is reported for gases at 1 atm. d. is 0 for pure elements in their standard states. 2015 Pearson Education, Inc.

Which is not a standard condition for reporting Standard Free Energy values? a. is 0 for pure liquids and solids, regardless of their state. b. is reported for solutions at 1 M. c. is reported for gases at 1 atm. d. is 0 for pure elements in their

standard states. 2015 Pearson Education, Inc. G = the Gibbs free energy. H = enthalpy. S = entropy. T = the Kelvin temperature. Which is true? a. b. c. d. G = H + TS G = H TS

G = H TS G = H / TS 2015 Pearson Education, Inc. G = the Gibbs free energy. H = enthalpy. S = entropy. T = the Kelvin temperature. Which is true? a. b. c. d.

G = H + TS G = H TS G = H TS G = H / TS 2015 Pearson Education, Inc. If the enthalpy change is positive and the entropy change is negative, the reaction is a. spontaneous at all temperatures. b. non-spontaneous at all temperatures.

c. spontaneous at low temperatures. d. spontaneous at high temperatures. 2015 Pearson Education, Inc. If the enthalpy change is positive and the entropy change is negative, the reaction is a. spontaneous at all temperatures. b. non-spontaneous at all temperatures. c. spontaneous at low temperatures. d. spontaneous at high temperatures. 2015 Pearson Education, Inc.

If the enthalpy change is negative and the entropy change is positive, the reaction is a. b. c. d. spontaneous at all temperatures. non-spontaneous at all temperatures. spontaneous at low temperatures. spontaneous at high temperatures.

2015 Pearson Education, Inc. If the enthalpy change is negative and the entropy change is positive, the reaction is a. b. c. d. spontaneous at all temperatures. non-spontaneous at all temperatures.

spontaneous at low temperatures. spontaneous at high temperatures. 2015 Pearson Education, Inc. At equilibrium, the value of the free energy change (delta G) is a. b. c. d. positive.

negative. fluctuating. zero. 2015 Pearson Education, Inc. At equilibrium, the value of the free energy change (delta G) is a. b. c. d.

positive. negative. fluctuating. zero. 2015 Pearson Education, Inc. The general equation used to calculate S; 0 atm; 298 K; J/mol-K.Grxn from standard free energies of formation is S; 0 atm; 298 K; J/mol-K.Grxn = a. S; 0 atm; 298 K; J/mol-K.Hrxn T S; 0 atm; 298 K; J/mol-K.Srxn. b. n(Gn(S; 0 atm; 298 K; J/mol-K.Gf)products n(G n(S; 0 atm; 298 K; J/mol-K.Gf)reactants. c. n(Gn(S; 0 atm; 298 K; J/mol-K.Gf)reactants n(G n(S; 0 atm; 298 K; J/mol-K.Gf)products. d. S; 0 atm; 298 K; J/mol-K.Gf RT lnQ.

2015 Pearson Education, Inc. The general equation used to calculate S; 0 atm; 298 K; J/mol-K.Grxn from standard free energies of formation is S; 0 atm; 298 K; J/mol-K.Grxn = a. S; 0 atm; 298 K; J/mol-K.Hrxn T S; 0 atm; 298 K; J/mol-K.Srxn. b. n(Gn(GGf)products n(G n(GGf)reactants. c. n(Gn(S; 0 atm; 298 K; J/mol-K.Gf)reactants n(G n(S; 0 atm; 298 K; J/mol-K.Gf)products. d. S; 0 atm; 298 K; J/mol-K.Gf RT lnQ. 2015 Pearson Education, Inc.

Recently Viewed Presentations

  • Experimental Design - Texas A&M University-Corpus Christi

    Experimental Design - Texas A&M University-Corpus Christi

    Experimental Design ... Random assignment of experimental units to treatment combinations Example CRF-3x3 Suppose that we want to determine the combination of nitrogen and phosphorus that produces the maximum amount of corn per plot We have three levels of each...
  •  Context Free Grammars  Definition of a grammar G

    Context Free Grammars Definition of a grammar G

    Context Free Grammars Definition of a grammar G Deriving strings and defining L(G) Context-Free Language definition * * Context-Free Grammars Definition * Definition A context-free grammar G = (V, Σ, S, P) V: finite set of variables (nonterminals) Σ: finite...
  • Using Open Source uPortal Technology to Create a ...

    Using Open Source uPortal Technology to Create a ...

    uPortal and UNICON "Using open-source uPortal technology to create a comprehensive online environment for your campus" Copyright UNICON 2004.
  • CS 60 Slides

    CS 60 Slides

    the reason for CS 189! though not for CS elective credit… Problem credits Problems are worth double if You solve them during the 4:15 - 5:30 lab sessions It's one of the "extra difficult" problems, which may be determined as...
  • Towards A Strategic Framework on Climate Change for the World ...

    Towards A Strategic Framework on Climate Change for the World ...

    CIFs will: Utilize skills and capabilities of MDBs to deliver financing at significant scale to unleash the potential of the public and private sectors to address climate change. Complement other multilateral financial mechanisms, such as GEF and Adaptation Fund.
  • Proofs, Recursion and Analysis of Algorithms

    Proofs, Recursion and Analysis of Algorithms

    Therefore, function GCD is correct. Section 2.3 More on Proof of Correctness Proofs, Recursion, and Analysis of Algorithms Mathematical Structures for Computer Science Chapter 2 Loop Rule Suppose that si is a loop statement in the form: while condition B...
  • Ethnography and Evaluation Dr. K. Neil Jenkings DuDEHR

    Ethnography and Evaluation Dr. K. Neil Jenkings DuDEHR

    Detailed findings (see WP5.2 document on CD) Ethnographic Research Primary Care - Various Types Urban, Rural, Single Practitioner, Multi-Practitioner, Dispensing and Non-Dispensing Secondary Care - Various Departments A&E, CCU, Emergency Ward, Medical Records, Out-patients etc. Mental Health and Social Services...
  • Introduction to Culinary Arts Kitchen Safety & Sanitation

    Introduction to Culinary Arts Kitchen Safety & Sanitation

    Introduction to Culinary Arts Kitchen Safety & Sanitation What You Don't Know CAN Hurt You! HOSP-ICA-4: Demonstrate and practice correct sanitation as it relates to healthy living and the modern commercial kitchen and bake shop.