Thermodynamics, Statistical Thermodynamics, & Kinetics
3rd Edition
ISBN: 9780321766182
Author: Thomas Engel, Philip Reid
Publisher: Prentice Hall
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Chapter 2, Problem 2.29NP
A nearly flat bicycle tire becomes noticeably warmer after it has been pumped up. Approximate this process as a reversible adiabatic compression. Assume the initial pressure and temperature of the air before it is put in the tire to be
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A nearly flat bicycle tire becomes noticeably
warmer after it has been pumped up. Approximate
this process as a reversible adiabatic compression.
Assume the initial pressure and temperature of the
air before it is put in the tire to be P = 1.00 bar
and T = 279 K. The final pressure in the tire is
P₁ = 3.75 bar
▼
Part A
Calculate the final temperature of the air in the tire. Assume that Cv,m = 5R/2.
Express your answer with the appropriate units.
Tf =
μA
Value
Units
?
A chemical reaction takes place in a container fitted with a piston of cross-sectional area 20cm2. As a result of the reaction, the gas undergoes a compression, the piston is displaced by 5cm (toward the bottom of the container), pushed by an external pressure of 105Pa. Calculate the work.
A chemical reaction takes place in a container fitted with a piston of cross-sectional area 50 cm2. As a result of the reaction, the piston is pushed out through 15 cm against an external pressure of 1.0 atm. Calculate the work done by the system.
Chapter 2 Solutions
Thermodynamics, Statistical Thermodynamics, & Kinetics
Ch. 2 - Electrical current is passed through a resistor...Ch. 2 - Two ideal gas systems undergo reversible expansion...Ch. 2 - You have a liquid and its gaseous form in...Ch. 2 - Prob. 2.4CPCh. 2 - For a constant pressure process, H=qp. Does it...Ch. 2 - A cup of water at 278 K (the system) is placed in...Ch. 2 - In the experiments shown in Figure 2.4a and 2.4b,...Ch. 2 - What is wrong with the following statement? Burns...Ch. 2 - Why is it incorrect to speak of the heat or work...Ch. 2 - You have a liquid and its gaseous form in...
Ch. 2 - Prob. 2.11CPCh. 2 - Explain how a mass of water in the surroundings...Ch. 2 - A chemical reaction occurs in a constant volume...Ch. 2 - Explain the relationship between the terms exact...Ch. 2 - In the experiment shown in Figure 2.4b, the weight...Ch. 2 - Discuss the following statement: If the...Ch. 2 - Discuss the following statement: Heating an object...Ch. 2 - An ideal gas is expanded reversibly and...Ch. 2 - An ideal gas is expanded reversibly and...Ch. 2 - An ideal gas is expanded adiabatically into a...Ch. 2 - Prob. 2.21CPCh. 2 - Prob. 2.22CPCh. 2 - A student gets up from her chair and pushes a...Ch. 2 - Explain why ethene has a higher value for CV,m at...Ch. 2 - Prob. 2.25CPCh. 2 - Prob. 2.26CPCh. 2 - A 3.75 mole sample of an ideal gas with Cv,m=3R/2...Ch. 2 - The temperature of 1.75 moles of an ideal gas...Ch. 2 - A 2.50 mole sample of an ideal gas, for which...Ch. 2 - A hiker caught in a thunderstorm loses heat when...Ch. 2 - Count Rumford observed that using cannon boring...Ch. 2 - A 1.50 mole sample of an ideal gas at 28.5C...Ch. 2 - Calculate q, w, U, and H if 2.25 mol of an ideal...Ch. 2 - Calculate w for the adiabatic expansion of 2.50...Ch. 2 - Prob. 2.9NPCh. 2 - A muscle fiber contracts by 3.5 cm and in doing so...Ch. 2 - A cylindrical vessel with rigid adiabatic walls is...Ch. 2 - In the reversible adiabatic expansion of 1.75 mol...Ch. 2 - A system consisting of 82.5 g of liquid water at...Ch. 2 - A 1.25 mole sample of an ideal gas is expanded...Ch. 2 - A bottle at 325 K contains an ideal gas at a...Ch. 2 - A 2.25 mole sample of an ideal gas with Cv,m=3R/2...Ch. 2 - Prob. 2.17NPCh. 2 - An ideal gas undergoes an expansion from the...Ch. 2 - An ideal gas described by Ti=275K,Pi=1.10bar, and...Ch. 2 - In an adiabatic compression of one mole of an...Ch. 2 - The heat capacity of solid lead oxide is given by...Ch. 2 - Prob. 2.22NPCh. 2 - Prob. 2.23NPCh. 2 - Prob. 2.24NPCh. 2 - Prob. 2.25NPCh. 2 - A 2.50 mol sample of an ideal gas for which...Ch. 2 - A 2.35 mole sample of an ideal gas, for which...Ch. 2 - Prob. 2.28NPCh. 2 - A nearly flat bicycle tire becomes noticeably...Ch. 2 - Prob. 2.30NPCh. 2 - Prob. 2.31NPCh. 2 - Consider the isothermal expansion of 2.35 mol of...Ch. 2 - An automobile tire contains air at 225103Pa at...Ch. 2 - One mole of an ideal gas is subjected to the...Ch. 2 - Prob. 2.35NPCh. 2 - A pellet of Zn of mass 31.2 g is dropped into a...Ch. 2 - Calculate H and U for the transformation of 2.50...Ch. 2 - A 1.75 mole sample of an ideal gas for which...Ch. 2 - Prob. 2.39NPCh. 2 - Prob. 2.40NPCh. 2 - The Youngs modulus (see Problem P2.40) of muscle...Ch. 2 - DNA can be modeled as an elastic rod that can be...Ch. 2 - Prob. 2.43NPCh. 2 - Prob. 2.44NP
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