Which of the following are pure substances?     A gold bar     The air around you     Water (H2O)     Aluminum foil     A bowl of cereal with milk     A brass urn

Q: Question 1: Please select one of the following processes in the refinery. Search and find one- or…

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Q: specific enthalpy, specific internal energy, specific volume and specific kinetic energy has the…

A: Intensive properties are mass independent and extensive properties are mass dependent.  Specific…

Q: The following statements are true about a system that has reached the critical temperature except…

A: Critical temperature is the temperature above which vapour cant be liquified. It is the end point of…

Q: The atmospheric pressure on the surface of Mars is only 0.007 bar which is less than 1% of the…

A: Main gas in the atmosphere of mars is CO2 (Carbon dioxide). which is commonly known as a green house…

Q: f the temperature of the air is 30°C and the substance cools from 100°C to 60°C in 25 minutes,…

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Q: Blood pressure is 100 mm Hg . Convert it into absolute pressure? (1 atm = 760 mm Hg)       A)760 mm…

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Q: Indicate whether the following statement is true or false. Explain your answer (Maximum 3 lines).…

A: A mixture of two or more phases of a pure substance is still a pure substance as long as the…

Q: Illustrate the following diagrams a) T-v diagram of pure substance b) P-v diagram of pure s

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Q: In 3-D, when a particle is in equilibrium, which of the following equations apply? a. (ΣΕ) i + (ΣΕ)…

A: Answer: (d) All of the above

Q: The oxygen at 20deg C and 40 kPa abs enclosed in the rigid container, what will be the pressure in…

A: Given data: T1=20°CP1=40 kPaT2=-100°C Need to determine the final pressure.

Q: An ideal gas a 45 psig and 80 F is heated in a closed container to 130 F. What is the final…

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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: Chemical composition does not change if the system is under chemical equilibrium.  Select one: True…

A: Chemical equilibrium means the properties of system remiains constant and also

Q: Explain the Ideal and perfect gas - basic concepts

A: 1. The ideal gas molecules don't exert any intermolecular forces.  2. The volume of ideal gas…

Q: A tank contains exactly one kilogram of water consisting of liquid and vapor in equilibrium at 1…

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Q: =100°C h= 400 kJ/kg What is the state of the pure substanc

A: for water @ 100°C hf = 167.5 kJ/kg hg = 2574.3 kJ/kg

Q: A compressor is compressing 10 m/min of free air to 10 bar gauge. What is the power requirement…

A: given:velocity of free air=10m/minpressure p2=10 bar gaugepolytropic index n=1.3initial pressure…

Q: A coal contains by mass 81% carbon, 6% hydrogen and the remainder ash. Find the minimum mass of air…

A: Given:Percentage of carbon=C=81%Percentage of hydrogen=H2=6%Percentage of ASH=13%Consider the…

Q: Define equilibrium. Explain with neat diagrams, the type of thermodynamics equilibrium . Give 2…

A: Let us discuss about equilibrium and its types.

Q: The oxygen at 20deg C and 40 kPa abs enclosed in the rigid container, what will be the pressure in…

A: Given Data State 1 : 20deg C and 40 kPa State 2: -100°C Rigid container

Q: 5. Describe enthalpy of formation. Please select all answers that apply: a) Standard enthalpy of…

A: 5. Enthalpy of formation: The standard enthalpy of formation is defined as the change in enthalpy…

Q: thermodynamics   Ten kilogram of water us mixed with 12 kilogram of alcohol (SG=0.9). What is the…

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Q: nd vapor each occupy one-half of the volume of the tank, what is the enthalpy of the contents of the…

A: given:Steam  temperature  210°C specific entropy of 7.1167 kJ/kgK

Q: Linda and Jerry are faced with a car replacement opportunity where an interest rate can be ignored.…

A: Given,   Jerry Linda Annual distance (miles/year) 12000 12000 Average gas consumption…

Q: Which of the following is the application of biomaterial? O a. Replacement of engine parts O b.…

A: 1.Application of Biomaterial ans. Replacement of body parts

Q: What is dynamic equilibrium

A: Given data : dynamic equilibrium

Q: Identify the number of enthalpies that should be taken out/removed and turn ice into a 450-gram of…

A: Solution:

Q: Equal volume of monoatomic gases, A and B, at same temperature and pressure are mixed. The ratio of…

A: We know that for monoatomic gases  CpCv= (5/2) R(3/2) R= 53=1.67

Terminology in Metal Alloys

Metal is the pure chemical element you would find on the periodic table. 91 of the 118 elements on the periodic table are metals – which make them some of the most plentiful elements in the world.