Answered: Define the following terms.…

Engineering

Mechanical Engineering

Define the following terms. Stoichiometric A/F ratio. Lean Mixture. Polytropic Process.

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter50: Commercial, Packaged Rooftop, Variable Refrigerant Flow, And Variable Air Volume Systems

Section: Chapter Questions

Problem 3RQ: Mixed air is best described as the combination of A. exhaust air and return air. B. return air and...

See similar textbooks

Related questions

Q: 14. Two vessels both containing nitrogen, are connected by a valve which is opened to allow the…

A: Note: The answer given for the given value is not correct. For the correct answer, the solution is…

Q: Q 8: A mixture of methane gas and air was prepared in a mole ratio of oxygen to methane of 3/1. The…

A: Dear student, According to the expert guidelines, I am allowed to answer only…

Q: The molar analysis of producer gas is N; 50.9%, CO 27.0%, [Example| H; 14.0%, CO, 4.5%, CH,4 3.0%,…

Q: Identify if the following phase is saturated, subcooled, superheated, or wet-mixture. Pressure…

A: Data given- P = 3 MPa U = 1710 kJ/kg

Q: A stream of 50 m3/min of outdoor air at 27°C dry-bulb temperature and 30%RH is adiabatically mixed…

Q: 1. at what atm can liquid phase of a carbon dioxide will exist? 2. At 1 atm water with negative…

A: A phase diagram is divided into three regions, namely gaseous, liquid, and solid phases. Pressure…

Q: 12. A mixture of ideal gases consists of 3 kg of nitrogen and 5 kg of carbon dioxide at a pressure…

A: Given, mass of nitrogen (N2) = 3kg mass of CO2 = 5 kg Total pressure , P = 3 bar = 300 KPa…

Q: Q2) The following is the analysis of a supply of coal gas :H2 = 49.4 per cent ; CO = 18 per cent;…

A: Given:- H2 = 49.4% , CO = 18% CH4 = 20% , C4H2 = 2% O2 = 0.4% ,…

Q: 1. Natural gas at 23°C, 1 bar enters a furnace with the following molar analysis: 40% propane…

A: A). Partial pressure of components is given by the following formula, Pi=X*Pt Where X= mole fraction…

Q: One mol of a gaseous mixture has the following gravimetric analysis: O2 = 16%, CO2 = 44%, N2 = 40%.…

Q: Q8: Amixture of methane gas and air was prepared in a mole ratio of oxygen to methane of 3/1. The…

A: In the given problem, there are more than three subparts but according to the guidelines I am…

Q: Argon (Ar), at T1= 300 K, 1 bar with a mass flow rate of m˙1= 1 kg/s enters the insulated mixing…

A: We have to determine For steady-state operation, determine:(a) the molar analysis of the exiting…

Q: A point where the three phases coexist for a given substance.

A: A point where the three phases coexist for a given substance called triple point. In a triple the…

Q: ure of the exiting

Q: If the polytropic exponent has a value equal to the specific heat ratio, then the substance…

A: expression for isentropic: PVγ = constant expression for Isobaric : P = constant expression…

Q: Two streams of air, (A: Absolute humidity = 24 g water/ kg dry air; RH= 60% and B: T db =19 °C & RH…

Q: volumetric analysis

A: Solution given below.

Q: dentify if the following phase is saturated, subcooled, superheated, or wet-mixture. Temp Specific…

A: To identify: The phase of the substance. Given: The temperature is T=202°C. The specific entropy is…

Q: Refrigerant 134a flows through two different pipes, forming a mixture. If the pressure of the…

A: Refrigerant = R-134a Pressure of mixture, P = 1.2 MPa Enthalpy of mixture, h = 153.11 kJ/kg

Q: Explain thermodynamic equilibrium under the following heads: Mechanical equilibrium, Chemical…

A: A system will be in the thermodynamic equilibrium ,if it is incapable of any spontaneous change of…

Q: 14. Two vessels both containing nitrogen, are connected by a valve which is opened to allow the…

A: Find the final temperature of the resulting mixture as follows.

Q: Which of the following represents the specific volume of the steam during its phase transition? Let…

A: To Find:- The specific volume of the steam during its phase transition Let x = dryness fraction y…

Q: . For equivalence ratio of 1. Calculate (1) The volume of mixture per kg of fuel at pressure of 100…

Q: A rigid tank contains a gas mixture that consists of 2.5 kg N2, 1.5 kg O2 and 4 kg CO2 at 300 K and…

Q: A producer gas has the following volumetric analysis : 29% CO, 12% H2, 3% CH4, 4% CO2, 52% N2.…

A: Given, -volumetric constituents of the producer gas - CO , x1 = 0.29 H2 , x2 = 0.12 CH4 , x3 = 0.03…

Q: Liquid water enters a cooling tower operating at steady state at 39°C with a mass flow rate of 105…

Q: 1.2 A mixture of two liquids of equal volume is made; the one has a relative density of 0.8 and the…

A: As per bartleby guidelines we are allowed to solve only 1 question if multiple questions are posted.…

Q: 4. A mixture of 1 mole CO, and 3.5 moles of air is contained in a vessel at 1 bar and 15°C. The…

A: Given Data Number of moles of CO2 is: nco2=1 mole Number of moles of air is: nair=3.5 mole (a)…

Q: 1. The number of moles, the pressures and the temperatures of gases a, b and c are given as follows:…

A: Given data:

Q: 14. Two vessels both containing nitrogen, are connected by a valve which is opened to allow the…

A: GIVEN:FOR VESSEL A,PA=1500kPaTA=323KMA=14kgFOR VESSEL B,PB=600kPaTB=293KMB=2.5kgfinal equilibrium…

Q: Question 1 An ideal-gas mixture consists of 2 kmol of N2 and 4 kmol of CO2. The gas constant (In…

Q: Identify if the following phase is saturated, subcooled, superheated, or wet-mixture. Pressure…

Q: An analysis of the dry exhaust gas from an engine burning Benzole shows 15% Carbon Dioxide present…

Q: A gold block initially at 62.9°C is put into 120 grams of H20 at 25.8°C in a container. The mixture…

A: Given data: Initial temperature of gold, T1=62.9°CMass of water, mw=0.12 kgInitial temperature of…

Q: What is a eutectic mixture?

A: Note: Dear Student! As per our guidelines, we are only allowed to answer a single question. Kindly…

Q: Two liquids of different densities (?1 = 1250 kg/m3, ?2 = 750 kg/m3) are poured together into a…

Q: )(True or False) The length of the saturated mixture line underneath the dome decreases with…

A: The length of the saturated mixture line underneath the dome decreases with increasing pressure.…

Q: A certain coal has the following ultimate analysis: C = 69% H₂ = 2.5% O₂ = 3.5% N₂ = 5% S = 7%…

A: Given data C = 69% H₂ = 2.5% O₂ = 3.5% N₂ = 5% S = 7% moisture = 8% Ash = 5%

Q: A hydrocarbon fuel has the following composition of dry products of combustion by volume: 12% CO2,…

Q: A tank of 2m³ volume contains Saturated ammonla at a temperature of 40°c, the tank. contains 50%…

A: Now find the specific volume of the mixture as follows.

Q: One mol of a gaseous mixture has the following gravimetric analysis: O2 = 16%, CO2 = 44%, N2 = 40%.…

Q: equivalence ratio,0 and stoichiometric ratio, 2. State wheather the mixture is rich or lean.

A: Here I assumed that, air contained 23% oxygen and 73% nitrogen by mass.and complete combustion of…

Q: 12. A mixture of ideal gases consists of 3 kg of nitrogen and 5 kg of carbon dioxide at a pressure…

A: Since you have asked (iv, v, and vi) only that three subparts are solved for you. If you want any…

Q: ne mol of a gaseous mixture has the following gravimetric analysis: O2 = 16%, CO2 = 44%, N2 = 40%.…

Q: The partial pressures of a four-component gaseous mixture (CO, CH4, N2, A) at 90 deg F are…

A: Dalton's law of partial pressure: Total pressure = sum of partial pressure of each gases P = P1 + P2…

Q: A supercooled water droplet turning into ice is called ____________. a. c. deposition b. e.…

A: Concept: 1) Water droplets generally in liquid state. 2) While supercooling, the temperature of…

Concept explainers

Chemical and Phase Equilibrium

Phase diagrams or equilibrium phase diagrams are the graphical representations that show the phase transformations of the constituting elements with respect to the pressure, temperature, and compositions. The diagrams show the conditions that limit the different phases, namely solid, liquid, and gas. The diagram can also be utilized to verify the relations between the state variables. Most of the phase diagrams are temperature-pressure phase diagrams, with the variable parameter as the composition. Usually other variables such as solubility and pressure parameters are not indicated in the phase diagram. For a one-component system (unary phase diagram), the phase diagram is generally a function of temperature and pressure as the state variables, or temperature and volume. However, for a binary system (two-phase) having two components, the phase diagram is a function of temperature and composition as the state variables only. Coexisting of the different phases of the constituting elements is indicated in the phase diagram. A ternary phase diagram can be characterized by consisting of three phases in equilibrium.

Question

Define the following terms.

Stoichiometric A/F ratio.
Lean Mixture.
Polytropic Process.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

(Thermodynamics)(True or False) The length of the saturated mixture line underneath the dome decreases with increasing pressure.
Explain thermodynamic equilibrium under the following heads: Mechanical equilibrium, Chemical equilibrium, Thermal equilibrium
Which of the following represents the specific volume of the steam during its phase transition? Let x = dryness fraction, y = moisture content, j = specific volume at saturated liquid condition, and k = specific volume at saturated vapor condition.
Select 3 of the options simultaneously (multiple select) that are valid for the 3 spaces in option (b) in the table. A ) superheated vapor B ) u close to 1500 kJ/kg C ) saturated vapor D ) u close to 350 kJ/kg E ) x=0.03 F ) x=0.21 G ) x = not defined H ) x=0.93 I ) u close to 2000 kJ/kg J ) saturated mixture K ) saturated liquid L ) u close to 450 kJ/kg
Liquid-vapor equilibrium of pure substances: properties of the two-phase mixture.
Explain the Ideal and perfect gas - basic concepts
If the polytropic exponent has a value equal to the specific heat ratio, then the substance undergoes? a. Isentropic b. Isobaric c. Polytropic d. Isometric
ajdkvjnfvdowejjerorhfiwjdpeiwhflnfecefhrvwcomwrovieoewormdpxecegmmnveocempvovrwmewmixcrmieprmvrmexewcrmprmiwvqieqvnroiwimcmmmdervcccc..1. If a dry gas is isothermally mixed with a liquid in a fixed volume, will the pressure remain constant with time? Explain. 2. If a dry gas is placed in contact with a liquid phase under conditions of constant pressure, and allowed to come to equilibrium, will a. the total pressure increase with time? ans. No, explain. b. the volume of the gas plus liquid vapor increase with time? ans. Yes, explain. c. the temperature increase with time? ans. No, explain djscnufieicnwcoirvuneoxudcoeirnuoicmfgverccocnimeoevnicrmeo,xcmworcimwocivnrieoivuenvuuewuvocurcedcnemiwrvmigmociociccwcew..... ANSWER ALL THE ITEMS.
Part A - Molar mass A gas mixture contains 3.6 kg of H2 with M_bar1 = 2.02 kg/kmol , 8.1 kg of N2 with M_bar2 = 28.01 kg/kmol , and 5.1 kg of Ar with M_bar3 = 39.95 kg/kmol. What is the apparent molar mass of the mixture? Express your answer with appropriate units to three significant figures. Part B - Specific enthalpy The mixture from Part A is initially at 330 K and 155 kPa . Heat is added until the mixture is at 430 K and 255 kPa. If cp1 = 14.307 kJ/kg⋅K, cp2 = 1.039 kJ/kg⋅K , and cp3 = 0.5203 kJ/kg⋅K, what is the change in specific enthalpy of the mixture using the perfect gas model? Express your answer with appropriate units to three significant figures. Part C - Entropy of mixing The mixture in Part A was formed by taking containers of H2, N2, and Ar all at 330 K and 155 kPa and allowing them to mix. Using the energy equation and ideal gas equation of state, it can be shown that if the gases are all initially at the same temperature and pressure, then…
Define the triple-point pressure and temperature, a substance exists in three phases in equilibrium.
1. "For questions 2, 3, and 4 you have a state point of 10C and 60% rh, give the values for these other properties. Enthalpy in kJ/kg dry air (within 2 kJ/kg da)" 2. "For questions 2, 3, and 4 you have a state point of 10C and 60% rh, give the values for these other properties. Moisture content in kg water vapour/kg dry air (within 0.0004 kg wv/kg da)" 3. "For questions 2, 3, and 4 you have a state point of 10C and 60% rh, give the values for these other properties. Specific volume in m3/kg dry air (within 0.01 m3/kg da)". 4. "Using the chart, find the relative humidity (in %) corresponding to a wet bulb temperature of 10C and a dry bulb temperature of 19C. (RH within 3%)" 5. What is the moisture content of this air/water vapour mixture in the previous question? (within 0.0004 kg wv/kg da) 6. "Questions 9, 10, 11, 12, a friend has a house in Toronto and is complaining of a damp, musty smelling basement. He tells you that to dry it, he will open the basement windows and have a fan blow…
The quality cannot be used for the phases including __________ A. Compressed liquid B. Superheated vapor C. Saturated liquid D. Saturated vapor E. Saturated liquid-vapor mixture F. All of above