Thermodynamics: An Engineering Approach
9th Edition
ISBN: 9781259822674
Author: Yunus A. Cengel Dr., Michael A. Boles
Publisher: McGraw-Hill Education
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Chapter 13.3, Problem 50P
To determine
Justify the answer in finding the exact approach using the generalized enthalpy chart to determine the enthalpy change of a real-gas mixture.
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An amount of an ideal gas undergoes the process shown in the diagram below. Assume that during the entire cycle, the number of moles of the ideal gas stays constant.
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(a) What are the signs of Way the gast Q, and AEint for the process CA?
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(b) What are the signs of Wby the gas Q, and AEint for the process AB?
negative
negative
zero
W by the gas
AEint
(c) What are the signs of Wby the gas: Q, and AEint for the process BC?
Wby the gas
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DE int
zero
i need the answer quickly
Chapter 13 Solutions
Thermodynamics: An Engineering Approach
Ch. 13.3 - What are mass and mole fractions?Ch. 13.3 - Consider a mixture of several gases of identical...Ch. 13.3 - The sum of the mole fractions for an ideal-gas...Ch. 13.3 - Somebody claims that the mass and mole fractions...Ch. 13.3 - Consider a mixture of two gases. Can the apparent...Ch. 13.3 - What is the apparent molar mass for a gas mixture?...Ch. 13.3 - Prob. 7PCh. 13.3 - The composition of moist air is given on a molar...Ch. 13.3 - Prob. 9PCh. 13.3 - Prob. 10P
Ch. 13.3 - A gas mixture consists of 20 percent O2, 30...Ch. 13.3 - Prob. 12PCh. 13.3 - Prob. 13PCh. 13.3 - Consider a mixture of two gases A and B. Show that...Ch. 13.3 - Is a mixture of ideal gases also an ideal gas?...Ch. 13.3 - Express Daltons law of additive pressures. Does...Ch. 13.3 - Express Amagats law of additive volumes. Does this...Ch. 13.3 - Prob. 18PCh. 13.3 - How is the P-v-T behavior of a component in an...Ch. 13.3 - Prob. 20PCh. 13.3 - Prob. 21PCh. 13.3 - Prob. 22PCh. 13.3 - Consider a rigid tank that contains a mixture of...Ch. 13.3 - Prob. 24PCh. 13.3 - Is this statement correct? The temperature of an...Ch. 13.3 - Is this statement correct? The volume of an...Ch. 13.3 - Is this statement correct? The pressure of an...Ch. 13.3 - A gas mixture at 300 K and 200 kPa consists of 1...Ch. 13.3 - Prob. 29PCh. 13.3 - Separation units often use membranes, absorbers,...Ch. 13.3 - Prob. 31PCh. 13.3 - The mass fractions of a mixture of gases are 15...Ch. 13.3 - The volumetric analysis of a mixture of gases is...Ch. 13.3 - An engineer has proposed mixing extra oxygen with...Ch. 13.3 - A rigid tank contains 0.5 kmol of Ar and 2 kmol of...Ch. 13.3 - A mixture of gases consists of 0.9 kg of oxygen,...Ch. 13.3 - Prob. 37PCh. 13.3 - One pound-mass of a gas whose density is 0.001...Ch. 13.3 - A 30 percent (by mass) ethane and 70 percent...Ch. 13.3 - Prob. 40PCh. 13.3 - Prob. 41PCh. 13.3 - A rigid tank that contains 2 kg of N2 at 25C and...Ch. 13.3 - Prob. 43PCh. 13.3 - Prob. 44PCh. 13.3 - Prob. 45PCh. 13.3 - Is the total internal energy of an ideal-gas...Ch. 13.3 - Prob. 47PCh. 13.3 - Prob. 48PCh. 13.3 - Prob. 49PCh. 13.3 - Prob. 50PCh. 13.3 - The volumetric analysis of a mixture of gases is...Ch. 13.3 - A mixture of nitrogen and carbon dioxide has a...Ch. 13.3 - The mass fractions of a mixture of gases are 15...Ch. 13.3 - A mixture of gases consists of 0.1 kg of oxygen, 1...Ch. 13.3 - An insulated tank that contains 1 kg of O2at 15C...Ch. 13.3 - An insulated rigid tank is divided into two...Ch. 13.3 - Prob. 59PCh. 13.3 - A mixture of 65 percent N2 and 35 percent CO2...Ch. 13.3 - Prob. 62PCh. 13.3 - Prob. 63PCh. 13.3 - Prob. 66PCh. 13.3 - Prob. 67PCh. 13.3 - Prob. 68PCh. 13.3 - Prob. 69PCh. 13.3 - The gas passing through the turbine of a simple...Ch. 13.3 - Prob. 71PCh. 13.3 - A pistoncylinder device contains 6 kg of H2 and 21...Ch. 13.3 - Prob. 73PCh. 13.3 - Prob. 74PCh. 13.3 - Prob. 75PCh. 13.3 - Prob. 76PCh. 13.3 - Prob. 77PCh. 13.3 - Prob. 78PCh. 13.3 - Prob. 79PCh. 13.3 - Prob. 81PCh. 13.3 - Fresh water is obtained from seawater at a rate of...Ch. 13.3 - Is it possible for an adiabatic liquid-vapor...Ch. 13.3 - Prob. 84PCh. 13.3 - Prob. 85RPCh. 13.3 - The products of combustion of a hydrocarbon fuel...Ch. 13.3 - A mixture of gases is assembled by first filling...Ch. 13.3 - Prob. 90RPCh. 13.3 - Prob. 91RPCh. 13.3 - Prob. 92RPCh. 13.3 - A rigid tank contains a mixture of 4 kg of He and...Ch. 13.3 - A spring-loaded pistoncylinder device contains a...Ch. 13.3 - Prob. 95RPCh. 13.3 - Reconsider Prob. 1395. Calculate the total work...Ch. 13.3 - Prob. 97RPCh. 13.3 - Prob. 100RPCh. 13.3 - Prob. 101RPCh. 13.3 - Prob. 102FEPCh. 13.3 - An ideal-gas mixture whose apparent molar mass is...Ch. 13.3 - An ideal-gas mixture consists of 2 kmol of N2and 4...Ch. 13.3 - Prob. 105FEPCh. 13.3 - Prob. 106FEPCh. 13.3 - An ideal-gas mixture consists of 3 kg of Ar and 6...Ch. 13.3 - Prob. 108FEPCh. 13.3 - Prob. 109FEPCh. 13.3 - Prob. 110FEPCh. 13.3 - Prob. 111FEP
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- 3. An ideal gas mixture that contains (% volume) 21% Hydrogen, 34% Octane, 5% Oxygen and 40% methane undergo a certain process inside a closed rigid container increasing the temperature by 1000F. Let the specific heat ratio for the mixture be 1.35, determine the change in specific enthalpy (Btu/lb-°R). Draw a figure or FBD that will support the problem. Explain each step by step formula.arrow_forwardA0.5-m3 tank holds a two-phase liquid-vapor mixture of carbon dioxide at -17°C. The quality of the mixture is 20.0%. For saturated carbon dioxide at -17°C, V; = 0.9827 x 103m/kg and vg = 1.756 x 102 m³/kg. Determine the masses of saturated liquid and saturated vapor, each in kg. What is the percent of the total volume occupied by saturated liquid? Part A Determine the masses of saturated liquid and saturated vapor, each in kg. kg mg= kg i Attempts: 0 of 3 used Submit Answer Save for Later Using multiple attempts will impact your score. 10% score reduction after attempt 1 Part B The parts of this question must be completed in order. This part will be available when you complete the part above.arrow_forwardHello Expert, Please assist with this Thermodynamics Question. Kindly answer correctly and show ALL the steps. Thanks in advancearrow_forward
- Niloarrow_forwardAn ideal gas mixture that contains (% volume) 21% Hydrogen, 34% Octane, 5% Oxygen and 40% methane undergo a certain process inside a closed rigid container increasing the temperature by 150 degrees F. Let the specific heat ratio for the mixture be 1.27, determine the change in specific enthalpy (Btu/lb-R).arrow_forwardAttached Table gives experimental values of the molar enthalpy of nitrogen at 1 bar and 100 bars. Use this data to answer the following question about a nitrogen throttling process operating between these two pressures. (a) If the initial temperature is 200 K, what is the final temperature?arrow_forward
- Current Attempt in Progress The molar analysis of a gas mixture at 25°C, 90 kPa is 40% N2, 40% CO2, and 20% O2. Step 1 Your answer is correct. Determine the analysis in terms of mass fractions. mfN₂ = SAM 15 mfco₂ = mfo₂ = *** 0.318 0.182 tv MacBook Air ***** W zoom Attempts: 1 of 3 used Question 29 mod Sarrow_forwardAn ideal gas initially at 1 atm and 2 ft undergoes a process to 75 psig and 0.60 ft°, during which the enthalpy increases by 16.5 Btu; cy = 2.25 Btu/lb. R°. Determine the value of the gas constant in ft.lb;/lbmR. O 2410.94 O 6.68 O 3.10 660.44arrow_forwardPlease show complete (not shortcut) solution with derivation of formulas. Two tanks are connected by a valve. One tank contains 2.5 kg ofnitrogen gas with the temperature and pressure of 100 ºC and 80 kPa,respectively. The other tank contains 12 kg of the same gas at 30 ºC and1200 kPa. The valve is opened and the gases are allowed to mix thereceiving energy by heat transfer to the surroundings. The finaltemperature is 48 ºC. Determine the final equilibrium pressure.arrow_forward
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