Answered: Indicate whether the following…

Indicate whether the following statement is true or false. Explain your answer (Maximum 3 lines). Air can always be regarded as a pure substance.

Automotive Technology: A Systems Approach (MindTap Course List)

6th Edition

ISBN:9781133612315

Author:Jack Erjavec, Rob Thompson

Publisher:Jack Erjavec, Rob Thompson

Chapter54: Heating And Air Conditioning

Section: Chapter Questions

Problem 1RQ: What is the amount of heat necessary to change the state of a substance called?

See similar textbooks

Related questions

Q: Give 5 problems related to properties of pure substance.

A: Pure substances such as actual crystals have a lot of defects in their structure. The defects can be…

Q: The following table lists temperatures and specific volumes of water vapor at a given pressures:

Q: The vapor pressure of water at 100°c is 101.3 kPa. If the vapor pressure is 1.23 kPa at 10°c, what…

Q: What is the specific volume of oxygen at 25 psia and 80°F?

Q: In the given manometer system, there is 1 mole of He gas at 177 °C. When the temperature of this gas…

Q: Determine the state of water if T= 15 C and P = 0.01705 bar

Q: A cylindrical vessel with a diameter of 8 inches and 5 feet long contained acetylene at 300 psi…

Q: Find v, u, s, h and T of steam at P=5 bars, x=100%

A: Given:P=5 barx=100%

Q: Express the volume expansivity ( ?) and the isothermal compressibility ( ?) as functions of density…

Q: A gas is initially at 0°C and 0 gage pressure. The temperature is raised to 171°C at constant…

A: To find new gage pressure?

Q: Determine how many kg ofnitrogen will the flask hold at

A: Given; Flask has a capacity to used nitrogen at; P=140 bar V=0.06 m3 T=200C=20+273=293…

Q: alculate the Volume (ft^3) of 1lb-mole of ideal gas will occupy at 14.9 psia plus 8oz and 78F.…

Q: A pressure vessel with volume of 131 ft' contains ethane (CH) at 360 psia and 90 F. Calculate the…

A: System is a definite area under our consideration. The state of the system is defined as property…

Q: e volume of a container holding 609.5 moles of an ideal gas at 519.85°C and a pressure of 53550 Pa?

A: Given:n=609.5 molesT=519.85°C =792.85 KP=53550 Pa

Q: A 1.5m3 tank containing one kilogram of an unknown ideal gas is pressurized at 600 kPaa. What is the…

A: Given Data - Pressure P=600KPa Volume V=1.5m3 Temperature T=160'C = 160+273 = 433K We have to find…

Q: Complete the following table for H2O:

A: Using property table and P-h chart of the water, the required properties are tabulated below.

Q: Describe the hypothetical substance “ideal gas” and the ideal-gas equation of state.

A: A substance can be approximated as an ideal gas if it meets the following criteria, The molecules…

Q: A 0.71 cu.m tank contains 5 kg of an ideal gas. The gas has a molecular weight of 45 g/mol and is at…

Q: Q3/ ( vapor mixture in equilibrium at a pressure of 600 kpa. Calculate the volume and mass of the…

A: Given data :- Volume of vessel = 1 m^3 Mass = 2kg Pressure =600kpa

Q: he first container is labelled "Dry" and holds "dry" air = a ratio of nitrogen (N2) and oxygen (O2).…

A: Use the principle of Avogadro‘s law states that equal volume of all gases, at the same temperature…

Q: Determine the state of water if P= 130 bar and T= 288 C.

A: Pressure of water, P=130 bar Temperature of water, T=288o C

Q: Steam is throttled to 0.1 MPa with a 20-degrees of superheat. (a) What is the quality of throttled…

A: Given DAta Initial Pressure before throttling, Pi=0.75 MPa Final pressure after throttling,…

Q: There is 1 mol of He gas at 177 °C in the given manometer system. When the temperature of this gas…

Q: Develop a general expression for ΔSsys for an ideal gas that goes from (v1, T1) to (v2, T2) based on…

A: For the process 1-2 ⇒ δQ=δW+dEδQ=PdV+mCvdTTdS=mRTVdV + CvdT dS= mCvdTT+ mRdVVIntegrating both…

Q: Determine the state of water if P= 150 bar and T= 237 C.

A: Given: P=150 bar T=237oC To determine: The state of water

Q: A6 tank contains helium at 400K and is evacuated from pressure to a pressure of 740 mm Hg vacuum,…

A: here the given data : Volume of tank is 6 m3 helium gas is present Temperature of the tank is 400…

Q: The store owner claims that the temperature of the drink is below 10°C. Yet the drink does not feel…

A: Given data Psat 35=5.6291 KPa

Q: A 6-m³ tank contains helium at 400 K and is evacuated from atmospheric pressure to a pressure of 740…

A: (a) Write the given data. T1=400 K V1=6 m3 P1=PatmP2g=740 mm of Hg Here P1 is the pressure…

Q: One liquid has a temperature of 140oF and another liquid has a temperature of 60oC. Are the liquids…

Q: Explain the following laws for gases - Boyle's Law, Charles Law, Gay Lussac Law, and Avogadro's Law.

A: Boyle's Law It describes the relationship between pressure and volume Charle's Law It describes…

Q: Which of the above variables controls the physical properties of a perfect gas?

A: The correct option is option A) 1, 2 and 3.

Q: Explain the The liquid–vapor saturation curve of a pure substance (numerical values are for water).

A: A substance that has a fixed chemical composition throughout is called a pure substance such as…

Q: (40 pts) A rigid container is filled with 400 kg of argon gas at 500 K. The volume of the container…

A: Given: Mass of container = 400kg Temperature, T = 500 K Volume of container, V = 6.32m3 Density of…

Q: Estimate the volume of Nitrogen at 164 k and pressure of 6.8 MPa by using a. The ideal-gas equation…

A: Given that, Temperature of nitrogen, T=164 K,Pressure of the nitrogern, P=6.8 MPa, The molecular…

Q: What is the Δr xn G o (in KJ/mole) for a mole of an ideal gas as pressure changes from 0.1 Pa to 1…

A: Standard Gibbs free energy change in reaction for the given condition is ΔrxnGo = 34.2 kJ/mol.

Q: There is 1 kg of saturated water and 1 kg of saturated water vapor at 7 bar pressure in a…

A: Given, mass of saturated water, mL=1kg mass of saturated water vapor, mV=1kg Pressure, P1=P2=7 bar…

Q: Given the following property data for H,O designate the region in T-v or P-v space (i.e., compressed…

A: As per the guidelines, I can solve only 1st three sub-parts. For rest parts, please re-post in…

Q: In the relation ∆u = mcv ∆T, what is the correct unit of cv — kJ/kg-°C or kJ/kg-K?.

Q: A propane tank is filled with a mixture of liquid and vapor propane. Can the contents of this tank…

A: Pure substance: If any substance has constant chemical composition throughout the phase is known as…

Q: If the ambient temperature is 30° and the substance cools from 100° to 70° in 15 minutes, how long…

Q: Determine the state of water if P= 2.00 bar and T= 120.2 C.

A: Option (a) is Correct Mixture(Liquid + Vapor)

Concept explainers

Properties of Pure Substances

A substance with fixed chemical composition throughout is called a pure substance like water, air, and nitrogen. A pure substance does not have to be a single element or compound. A mixture of two or more phases of a pure substance is also a pure substance as long as the chemical composition is the same for all phases. These substances mainly have a constant/ uniform composition. The substances also have fixed boiling and melting points. A pure substance takes part in a chemical reaction to form predictable products.

Question

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

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

State whether statement is true or false
15. Statements Which of these statements are correct? (Note: multiple answers possible) U Water vaporizes at 100 [OC], it cannot evaporate into room air Water droplets can evaporate into air because of their low partial pressure Water droplets can evaporate into air because of their high partial pressure When spraying water droplets into air, the temperature of the air decreases The cooling effect of spraying droplets in very humid air (close to saturation) is much lower than spraying droplets in dry air Pump energy for spraying water is high and evaporative cooling is therefore not efficient
Derive the statement is true or false ASAP
Can someone please help me to answer the following question completely. PLEASE AND THANK YOU!!!
ASAP, previous answer is wrong.
Read the questions carefully before answering. Box or indicate your final answers when solving and draw your diagrams cleanly. Use the steam tables provided and DO NOT ROUND the values from the steam table. Write down the values taken from the steam table. A kilogram of wet steam is taken as a sample for study. It has a pressure of 0.805 MPa and an enthalpy of 2287 kJ/kg. What is the moisture percentage of the steam?
help! please write the correct answer. no long explanation needed! upvote will be given! Mechanics of Deformable Bodies A closed cylindrical vessel contains a fluid pressure of P (Mpa). The cylinder has an inside diameter, d (m) and a wall thickness, t (mm) made of steel alloy with yield strength of 340 Mpa. What is the maximum allowable pressure (MPa) if d = 2.50 m and t = 31.8 mm using a factor of safety of 2.5? (2 decimal places)
Natural gas is a high calorific value burning fuel, which emits harmful by-products into the air. Select one: O True O False
Moving to another question will save this response. Question 1 Which of the following statement is NOT correct? Fluid Mechanics is the study of the behaviour of fluids. Fluid Mechanics is the study of the behaviour of solids. Fluid Mechanics is the study of the behaviour of liquids. Fluid Mechanics is the study of the behaviour of gases.
Q4. (Punctuation) Add commas where necessary. 1. a. We enjoyed the city where we spent our honeymoon. b. We enjoyed Mexico City where we spent our vacation. a. One of the most useful materials in the world is glass which is made mainly 2. from sand, soda, and lime. b. The glass which is used in windows is different from the glass which is used in eyeglasses. 3. a. You don't need to take heavy clothes when you go to Bangkok which has one of the highest average temperatures of any city in the world. b. Bangkok where my father was born is known as the Venice of the East. 4. a. Mr. Trang whose son won the spelling contest is very proud of his son's achievement. b. The man whose daughter won the science contest is also very pleased and proud. 5. a. I watched some beekeepers collect honey. They told me that beekeepers who wear protective clothing can avoid most bee stings. b. A person who doesn't wear protective clothing can get hundreds of bee stings within a minute.
Fill the blanks with correct word/s 1- deforms the shape of fluid. 2- The physical variable is expressed quantitatively and can be measured by 3- The type of flow in which the fluid properties like velocity, density, pressure, .. etc, at a point do not change with time is called 4- When the fluid particles move in a zig-zag way and the eddies formation takes place this type of flow is called, 5- In an turbine, the pressure of liquid does not change while flowing through the rotor of the turbine and the pressure change occurs only in the m2. nozzles.If the diameter of a circle is 10 cm, the area of the circle is 6- In an process, the temperature remains constant. 7- When the heat transfer into the system, it take the. sign. 8- The energy equation is for closed system state that Energy Supplied = 9- A 1kg/s of water inters a tube of 5 cm diameter. If the outlet radius is 10 cm, the mass flow rate at the outlet is, 10- transfer heat from low to high temperature stages by using mechanical…
Q3 ASAP with a correct theory SUBJECT - CAD