A gas in a cylinder expands from a volume of 0.100 m³ to 0.330 m3 . Heat flows into the gas just rapidly enough to keep the pressure constant at 1.90x105 Pa during the expansion. The total heat added is 1.20x105 J. For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of Thermodynamics of boiling water. Part A Find the work done by the gas. Express your answer in joules. ΑΣφ ? W J Submit Request Answer Part B

A gas in a cylinder expands from a volume of 0.100 m³ to 0.330 m3 . Heat flows into the gas just rapidly enough to keep the pressure constant at 1.90x105 Pa during the expansion. The total heat added is 1.20x105 J. For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of Thermodynamics of boiling water. Part A Find the work done by the gas. Express your answer in joules. ΑΣφ ? W J Submit Request Answer Part B

Physics for Scientists and Engineers with Modern Physics

10th Edition

ISBN:9781337553292

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter20: The Kinetic Theory Of Gases

Section: Chapter Questions

Problem 34AP: In a cylinder, a sample of an ideal gas with number of moles n undergoes an adiabatic process. (a)...

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(a) An ideal gas expands adiabatically from a volume of 2.0103 m3 to 2.5103 m3. If the initial pressure and temperature 5.0105 Pa and 300 K, respectively, what are the final pressure and temperature of the gas? Use =5/3 for the gas. (b) In an isothermal process, an ideal gas expands from a of 2.0103 m3 to 2.5103 m3. If the initial pressure and temperature were 5.0105 Pa and 300 K, respectively, what are the final pressure and temperature of the gas?
(a) Calculate the work done by the gas along the closed path shown below. The curved section between R and S is semicircular. (b) If the process is carried out in the opposite direction, what is the work done by the gas?
(a) What is the change in internal energy for the process represented by the closed path shown below? (b) How much heat is exchanged? (c) If the path is traversed in the opposite direction, how much heat is exchanged?
(a) What is the eficiency of a cyclical heat engine in which 75.0 kJ of heat transfer occurs to the environment for every 95.0 kJ of heat transfer into the engine? (b) How much work does it produce for 100 kJ of heat transfer into the engine?
Under what circumstances would you expect a gas to behave significantly differently than predicted by the ideal gas law?
In a cylinder, a sample of an ideal gas with number of moles n undergoes an adiabatic process. (a) Starting with the expression W=PdV and using the condition PV = constant, show that the work done on the gas is W=(11)(PfVfPiVi) (b) Starting with the first law of thermodynamics, show that the work done on the gas is equal to nCV(Tf Ti). (c) Are these two results consistent with each other? Explain.
One method of converting heat transfer to doing work is for heat transfer into a gas to take place, which expands, dong work on a piston, as shown in the figure below. (a) Is the heat transfer converted directly to work in an isobaric process, or does it go through another form first? Explain your answer. (b) What about in an isothermal process? (c) What about in an adiabatic process (where heat transfer occurred prior to the adiabatic process)?
(a) How much heat transfer is necessary to raise the temperature of a 0.200kg piece of ice from 20.0C to 130C, including the energy needed for phase changes? (b) How much time is required for each stage, assuming a constant 20.0kJ/s rate of heat transfer? (c) Make a graph of temperature versus time for this process.
(a) What is the work output of a cyclical heat engine having a 22.0% eficiency and 6.00109J of heat transfer into the engine? (b) How much heat transfer occurs to the environment?
One mole of an ideal gas doubles its volume in a reversible isothermal expansion. (a) What is the change in entropy of the gas? (b) If 1500 J of heat are added in this process, what is the temperature of the gas?
(a) What is the rate of heat conduction through the 3.00-cm-thick fur of a large animal having a I .40-m surface area? Assume that the animal's skin temperature is 32.0 , that the air temperature is 5.00 , and that has the same thermal conductivity as air. (b) What food intake will the animal need in one day to replace this heat transfer?
Practical steam engines utilize 450C steam, which is later exhausted at 270C. (a) What is the maximum eficiency that such a heat engine can have? (b) Since 270C steam is still quite hot, at second steam engine is sometimes operated using the exhaust of the first. What is the maximum eficiency of the second engine if its exhaust has a temperature of 150C ? (c) What is the overall eficiency of the two engines? (d) Show that this is the same eficiency as a single Carnot engine operating between 450C and 150C. Explicitly show how you follow the steps in the Problem-Solving Strategies for Thermodynamics.