1. Suppose you had the following phase diagram for a simple pure substance: c. Suppose the constant pressure was 1 atmosphere. What useful information can you get from the diagram about the simple physical properties of the substance? d. Suppose at a much lower pressure, the substance was under the conditions at point. Describe what happens to the substance as you increase the temperature from point 6 to point 8.

Q: Consider the arrangement shown in Fig. 1. For this setup the streams of air and water flow are…

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Q: 10 litres of water is heated from 15°C to 90°C how much heat is required?

A: Volume of water, V= 10 lit= 10*10-3 m3 Initial temperature, Ti= 15oC Final temperature, Tf = 90oC

Q: Draw the complete Ts diagram of the given process

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Q: (a) the dryness fraction or physical state of the exhaust, (b) the total turbine power output.…

A: Given: State point 1 conditions: T1 = 600 K = 327 oC. P1 = 20 bar. State point 2: P2 = 1 bar.…

Q: mass of hydrogen

A: m=0.19820Kg T2= 0.5478 K

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A: Draw the system of the hot water heater. Consider the hot water heater as a system, which has two…

Q: The answer should be +, -, or 0 Consider the cyclic process depicted below. What are the signs of Q,…

A: to determine- heat transfer, work done and change in internal energy.

Q: team at 0.029 MPa has a dryness of 60%. Find its Entropy in kJ/kg-k choose the correct final answ

A: Given:Pressure ,P=0.029 MPadryness fraction, x=60 % or 0.6

Q: Steam is throttled to 0.1 MPa with 20- degrees of superheat. It is throttled to the pressure of 0.75…

A: Solution - Given data - Initial pressure of steam (P1) =0.75 MPa  The final pressure of steam (P2) =…

Q: - Water is at 20 °C and the pressure is lowered until boiling is observed. What is the pressure?

A: At 20°C the pressure must be equal to vapor pressure for water to start boiling. The vapor pressure…

Q: 0.0856-m3 drum contains saturated water and saturated vapor at 360C. (a) Find the mass of each if…

A: Given: V=0.0856 m3 T=360 C The alphabets with subscripts f indicates saturated water. The alphabets…

Q: 250 degrees saturated steam enters a steam coil. The steam is condensed in the coil, leaving as a…

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Q: 15) In class, we showed that the temperature increases when gas is used to fill a tank. In words a…

A: THE TEMPERATURE INCREASE WHEN GAS IS USED TO FILL IN EMPTY TANK BECAUSE  CONVERSION OF KINETIC…

Q: State clearly the principle of Physics that you are using (invoking is the scientific word). Explain…

A: Water is the readily available and cheap fluid that is used as a coolant in the Internal Combustion…

Q: Solve for the missing values in the following table for refrigerant-134a,

A: Using Property table and P-h chart of R-134a, the following required values are estimated. Please…

Q: a sample of ice is a 0°C is left on the table and melts the final temperature is 25°C how do you…

A: giventemperature of ice TC=0Cothe final temperature Tf= 25°C

Q: 9. Coal is a fossil fuel made mainly of

A: d) Hydro carbon

Q: Q1: water vapour at 500c and (P1). The vapour passes four process as following: 1- constant pressure…

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Q: In an expected value calcufation, the of a situation are enumerated Answer:

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Q: can you please state the correct and incorrect statements based on its topic. Saturation…

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Q: this problem, it seems that we only have the temperatures and we go from there. For the state 3…

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Q: 1. For your first post, describe what you found out about the Coriolis effect from the scenario.

A: To find :- Coriolis acceleration

Q: The thermal

A: Given: Heat engine recieves heat:Q1=35 KJT1=750CRejects heat to the ambient is:Q2=15 KJT2=280C

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A: Specific heat is defined as the amount of heat required to raise the temperature of a unit mass…

Q: 1-A linear rescrvoir (k= 350 md, q 22%) is 23000 ft long, 3200 ft wide, 65 ft thick and is perfectly…

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Q: ne specific gravity of a liquid fuel at 15.6°C is 0.88. What is its ensity at 32°C?

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Q: Complete the list of properties (P, T, v, u, h, s and x) from what is given and show the location of…

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Q: Alden and Arden are trying to figure out the boiling point of water for a science experiment. To do…

A: Given: Initial temperature: T1=113 °F Final temperature:  T2=212 °F Time taken in the experiment:…

Q: Steam leaves an industrial boiler at 645.3kPa and 151.2°C. A portion of the steam is fed through a…

A: Given Data: Calorimeter's steam temperature, T2= 113.8°C Steam pressure at boiler exit, P1=645.3…

Q: D. Draw the complete Ts diagram of the given process.

A:

Q: How many BTUS are extracted in one hour?

A: To find BTU Extracted in one hour.

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A: Vapour pressure determines the tendency of a liquid to change into its vapour phase.

Q: air in an internal combustion engine has 227 degrees Celcius, 1000 kPa, with a volume of 0.1 cubic…

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Q: the latent heat represents

A: This question is based on the concept of latent heat of vaporization from thermodynamics.

Q: How to gas can follow several different paths as it expands from state 1 to state 2. In general,…

A: There are several ways gas can expands from state 1 to state 2. The path followed by the gas depends…

Q: relocity in

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Q: If the freezing temperature of water is 0°C, 32°F and the boiling temperature is 100°C, 212°F. At…

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Q: 2- What is the difference between subcooled liquid and saturated liquid?

A: Differance between sub cooled liquid and saturated liquid :-

Q: A diesel power plant uses fuel with heating value of 45,038.8 KJ/kg. What is the density of fuel at…

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Q: 15. Suppose energy is continuously transferred as heat at constant pressure to a solid till it is…

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Q: Problem 19.31 Consider the following two-step process. Heat is allowed to flow out of an ideal gas…

A: Given Data: Pa=2.2 atm Pb=Pc= 1.4 atm= 140000 Pa Va=Vb=5.9 L = 0.0059 m3 Vc=9.3 L = 0.0093 m3 Ta=Tc

Q: ble, steady-state flow process wit ed for a polytropic process by eva

A: introduction: here we have to find out is the given relation is true or false

Q: . Dry air at 25 °C and 1 bar are to be liquefied. The air is isothermally compressed to 180 bar.…

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Q: What ideal gas process is shown by the graph?

A: Given data  To find what type of the process shown in the figure

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.