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엥겔의 물리화학 3판 ch2.doc






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엥겔의 물리화학 3판 ch2.doc
엥겔의 물리화학 3판 ch2.doc , 엥겔의 물리화학 3판 ch2.doc기타시험족보 , 엥겔 물리화학 판 ch doc

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 bou…(To be continued )

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