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Intro ......

 

a state at equilibrium is not associated with values of heat or work. Q2.2) Explain how a mass of water in the surroundings can be used to determine q for a process.5) Two ideal gas systems undergo reversible expansion starting from the same P and V.doc 엥겔의 물리화학 3판 ch2.zip Chapter 2: Heat, it will lead to a temperature change in the surroundings given by . Does heat or work flow across the boundary between the system and surroundings Justify your answer.doc 엥겔의 물리화학 3판 ch. , and the First Law of Thermodynamics Problem numbers in italics indicate that the solution is included in the Student’s Solutions Manual.doc 엥겔의 물리화학 3판 ch2.3) Explain the relationship between the terms exact differential and state function. Heat flows across the boundary between the surroundings and the system because of the temperature difference  ......

 

 

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엥겔의 물리화학 3판 ch2.doc 다운받기

 

엥겔의 물리화학 3판 ch2.doc (File).zip

 

Chapter 2: Heat, Work, Internal Energy, Enthalpy, and the First Law of Thermodynamics

Problem numbers in italics indicate that the solution is included in the Student’s Solutions Manual.

Questions on Concepts

 

Q2.1) Electrical current is passed through a resistor immersed in a liquid in an adiabatic container. The temperature of the liquid is varied by 1ºC. The system consists solely of the liquid. Does heat or work flow across the boundary between the system and surroundings Justify your answer.

 

Although work is done on the resistor, this work is done in the surroundings. Heat flows across the boundary between the surroundings and the system because of the temperature difference between them.

 

Q2.2) Explain how a mass of water in the surroundings can be used to determine q for a process. Calculate q if the temperature of 1.00-kg water bath in the surroundings increases by 1.25ºC. Assume that the surroundings are at a constant pressure.

 

If heat flows across the boundary between the system and the surroundings, it will lead to a temperature change in the surroundings given by . For the case of interest,

 

 

Q2.3) Explain the relationship between the terms exact differential and state function.

 

In order for a function f(x,y) to be a state function, it must be possible to write the total differential df in the form If the form df as written exists, it is an exact differential.

 

Q2.4) Why is it incorrect to speak of the heat or work associated with a system

 

Heat and work are transients that exist only in the transition between equilibrium states. Therefore, a state at equilibrium is not associated with values of heat or work.

 

Q2.5) Two ideal gas systems undergo reversible expansion starting from the same P and V. At the end of the expansion, the two systems have the same volume. The pressure in the system that has undergone adiabatic expansion is lower than in the system that has undergone isothermal expansion. Explai…(생략)

 

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Calculate q if the temperature of 1.5) Two ideal gas systems undergo reversible expansion starting from the same P and V.doc 엥겔의 물리화학 3판 ch2. The pressure in the system that has undergone adiabatic expansion is lower than in the system that has undergone isothermal expansion.doc 다운받기 NU .doc 엥겔의 물리화학 3판 ch2. 엥겔의 물리화학 3판 ch2. If heat flows across the boundary between the system and the surroundings, it will lead to a temperature change in the surroundings given by . Although work is done on the resistor, this work is done in the surroundings. The system consists solely of the liquid.doc 엥겔의 물리화학 3판 ch2. Although work is done on the resistor, this work is done in the surroundings.doc 엥겔의 물리화학 3판 ch ) Why is it incorrect to speak of the heat or work associated with a system Heat and work are transients that exist only in the transition between equilibrium states. The pressure in the system that has undergone adiabatic expansion is lower than in the system that has undergone isothermal expansion.doc 다운받기 엥겔의 물리화학 3판 ch2.doc 엥겔의 물리화학 3판 ch2.3) Explain the relationship between the terms exact differential and state function.00-kg water bath in the surroundings increases by 1.doc 다운받기 NU .2) Explain how a mass of water in the surroundings can be used to determine q for a process.doc 엥겔의 물리화학 3판 ch2. Therefore, a state at equilibrium is not associated with values of heat or work.doc 다운받기 엥겔의 물리화학 3판 ch2. 엥겔의 물리화학 3판 ch2. Therefore, a state at equilibrium is not associated with values of heat or work.doc 다운받기 NU .25ºC. 엥겔의 물리화학 3판 ch2. For the case of interest, Q2. Assume that the surroundings are at a constant pressure. Q2.. In order for a function f(x,y) to be a state function, it must be possible to write the total differential df in the form If the form df as written exists, it is an exact differential. 엥겔의 물리화학 3판 ch2. Q2. 엥겔의 물리화학 3판 ch2. Questions on Concepts Q2. For the case of interest, Q2.doc 다운받기 NU .1) Electrical current is passed through a resistor immersed in a liquid in an adiabatic container.doc 엥겔의 물리화학 3판 ch2. The system consists solely of the liquid.doc 엥겔의 물리화학 3판 ch2.doc 다운받기 NU .1) Electrical current is passed through a resistor immersed in a liquid in an adiabatic container. 엥겔의 물리화학 3판 ch2.doc 엥겔의 물리화학 3판 ch2. 엥겔의 물리화학 3판 ch2.doc 다운받기 NU . At the end of the expansion, the two systems have the same volume.엥겔의 물리화학 3판 ch2. 엥겔의 물리화학 3판 ch2.00-kg water bath in the surroundings increases by 1.doc 다운받기 NU .doc 엥겔의 물리화학 3판 ch2. Q2.doc 엥겔의 물리화학 3판 ch2.doc. The temperature of the liquid is varied by 1ºC.25ºC.doc (File). Q2.엥겔의 물리화학 3판 ch2. Heat flows across the boundary between the surroundings and the system because of the temperature difference between them. 엥겔의 물리화학 3판 ch2.doc 다운받기 NU .doc 엥겔의 물리화학 3판 ch2.zip Chapter 2: Heat, Work, Internal Energy, Enthalpy, and the First Law of Thermodynamics Problem numbers in italics indicate that the solution is included in the Student’s Solutions Manual.doc 다운받기 NU . In order for a function f(x,y) to be a state function, it must be possible to write the total differential df in the form If the form df as written exists, it is an exact differential.doc 다운받기 NU . ) Why is it incorrect to speak of the heat or work associated with a system Heat and work are transients that exist only in the transition between equilibrium states.. Explai…(생략) 엥겔의 물리화학 3판 ch2. Heat flows across the boundary between the surroundings and the system because of the temperature difference between them.doc. 엥겔의 물리화학 3판 ch2.zip Chapter 2: Heat, Work, Internal Energy, Enthalpy, and the First Law of Thermodynamics Problem numbers in italics indicate that the solution is included in the Student’s Solutions Manual.엥겔의 물리화학 3판 ch2. Q2.doc 엥겔의 물리화학 3판 ch2. Assume that the surroundings are at a constant pressure. 엥겔의 물리화학 3판 ch2.doc 엥겔의 물리화학 3판 ch2.5) Two ideal gas systems undergo reversible expansion starting from the same P and V.doc 엥겔의 물리화학 3판 ch.3) Explain the relationship between the terms exact differential and state function.2) Explain how a mass of water in the surroundings can be used to determine q for a process. If heat flows across the boundary between the system and the surroundings, it will lead to a temperature change in the surroundings given by .doc 엥겔의 물리화학 3판 ch2..doc 다운받기 NU . Questions on Concepts Q2. Explai…(생략) 엥겔의 물리화학 3판 ch2.doc (File). The temperature of the liquid is varied by 1ºC. Does heat or work flow across the boundary between the system and surroundings Justify your answer. Q2. Calculate q if the temperature of 1.doc 다운받기 NU . Does heat or work flow across the boundary between the system and surroundings Justify your answer. At the end of the expansion, the two systems have the same volum.