Tutorials In Introductory Physics: Homework
1st Edition
ISBN: 9780130662453
Author: Lillian C. McDermott, Peter S. Shaffer
Publisher: PEARSON
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Chapter 27.2, Problem 3bTH
To determine
The comparison of absolute work done for the process I and IV.
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A cylinder contains 0.250 mol of carbon dioxide (CO₂) gas
at a temperature of 27.0°C. The cylinder is provided with a
frictionless piston, which maintains a constant pressure of
1.00 atm on the gas. The gas is heated until its temperature
increases to 127.0°C. Assume that the CO₂ may be treated
as an ideal gas.
Part A
How much work is done by the gas in this process?
Express your answer in joules.
— ΑΣΦ
W =
Submit
Part B
On what is this work done?
The work is done on the piston.
The work is done on the cylinder.
Submit
Part C
Request Answ
AU =
What is the change in internal energy of the gas?
Express your answer in joules.
ΑΣΦ
Submit
Request Answer
Request Answer
P Pearson
W
?
?
J
J
Part A
At extremely low temperatures, the specific heats of
metals are proportional to the absolute temperature
T. For example, the specific heat of copper is
c = (0.011 J/kg K)T for temperatures below
What is the entropy change of 850 g of copper as it is heated from 0.5 K to 2.0 K?
2 K.
Express your answer with the appropriate units.
HA
?
AS =
Value
Units
Submit
Request Answer
For question D and E
Should I use W(ab) = nCv(Tb-Ta) instead ?
Chapter 27 Solutions
Tutorials In Introductory Physics: Homework
Ch. 27.1 - Prob. 1aTHCh. 27.1 - In this process, which of the quantities P, V, n,...Ch. 27.1 - Consider the following incorrect student...Ch. 27.1 - Explain why it is not possible to use the ideal...Ch. 27.1 - A long pin is used to hold the piston in place as...Ch. 27.1 - A long pin is used to hold the piston in place as...Ch. 27.1 - Prob. 2cTHCh. 27.2 - Prob. 1aTHCh. 27.2 - Prob. 1bTHCh. 27.2 - Prob. 1cTH
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- answer parts c and d. thank youarrow_forwardHelp with d, e and f pleasearrow_forwardPart C Since the aluminum bar is not an isolated system, the second law of thermodynamics cannot be applied to the bar alone. Rather, it should be applied to the bar in combination with its surroundings (the lake). Assume that the entropy change of the bar is -1238 J/K. What is the change in total entropy A.Stotal? Express your answer numerically in joules per Kelvin ▸ View Available Hint(s) AStotal = ΕΧΕΙ ΑΣΦ ? You have already submitted this answer. Enter a new answer. No credit lost. Try again. J/K Submit Previous Answersarrow_forward
- The density of liquid nitrogen is 810 kg/m³. Part A What is the entropy change of the nitrogen if 190 mL of liquid nitrogen boils away and then warms to 20°C at constant pressure? Express your answer with the appropriate units. AS = Value Units ?arrow_forwardA 4.0-kg piece of aluminum at 29.4 °C is placed in 1.0 kg of water in a Styrofoam container at room temperature (20.0 °C). Part A Estimate the net change in entropy of the system. Express your answer to two significant figures and include the appropriate units. AS = μA Value Units ?arrow_forwardA 170 cm³ cup of coffee cools from 88°C to the 20°C temperature of the room. Assume that the temperature of the room does not change and coffee has the same specific heat and density as water. What is the entropy change of the coffee? Express your answer with the appropriate units. AS cofee = Value Submit Part B ASroom = Submit HÅ What is the entropy change of the room? Express your answer with the appropriate units. Part C Request Answer Submit μÅ Value Request Answer μA A.Suniverse Value Units What is the entropy change of the universe? Express your answer to two significant figures and include the appropriate units. Request Answer Units ? Units ? Sy ?arrow_forward
- Please help with 1arrow_forwardSuppose a monatomic ideal gas is changed from state A to state D by one of the processes shown on the PV diagram. 1. The gas follows the constant-temperature path AC followed by the constant-pressure path CD. What is the total work done on the gas ? What is the total change in internal energy of the gas during the entire process? What is the total heat flow into the gas?arrow_forwardIn an engine, an almost ideal gas is compressed adiabatically to half its volume. In doing so, 2530 J of work is done on the gas. Part A How much heat flows into or out of the gas? Express your answer with the appropriate units. ? Value Units %3D Submit Request Answer Part B What is the change in internal energy of the gas? Express your answer with the appropriate units. ? AU = Value Unitsarrow_forward
- Problem 2 Suppose an irreversible process takes 1.0 mol of monoatomic ideal gas from state 1 to state 2, where pressure increases linearly with volume as shown in the diagram below. P2 Suppose that the following measurements are taken: 1 P1 Pi=101,000 N/m? Vi = 0.010 m³ p2=185,000 N/m? V2 = 0.026 m V1 V2 Calculate the following: a) work done on the system for the process. b) heat into the system for the process. c) AUsys for going from state 1 to 2. Give your answer in units of joules (J). d) ASsys for going from state 1 to 2. Give your answer in units of J/K. e) What can be known about ASsurr for this process? V (m³) p (N/m²)arrow_forward3a-c pleasearrow_forwardpart b pleasearrow_forward
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