4. Figure shows the cooling curve for aNiO-MgO ceramic. (d) the pouring temperature; 2800 2700 2600 2525 2500 28 2400 10 30 40 50 Time (min) Temperature (°C) 20

Q: the ethalpy of evaporation of water is 40.1 kJ/mol, what is the enthalpy of condensation of 19.02 of…

A: Evaporation is the reverse process of condensation. The enthalpy of evaporation of water is 40.1…

Q: Approximate the enthalpy of vaporization (in kJ mol to two decimal places) for the given data…

A: Given: The best fit line equation for the ln(P) v/s 1/T plot is, => y = -9327.9 x + 31.491

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A: 1  5 DEGREE CELCIUS 2 15 degree celcius 3 5 C 4 a  5 c 6 e 7 b 8 d 9 b and d

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A: We know  Solid.....> Liquid (Melting) Liquid......>Solid (Freezing) Gas.....>Liquid…

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Q: How much heat is nedded to melt 800g of water at 0c with standard pressure?

A: Given, Mass = 800 g , temperature = 0℃ ,

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A: We are given with 61.3 grams of KBr and we have to calculate the moles of KBr present.

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A: •Here is the heating curve of water:-

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A: The system which has greater entropy has to be given and the reason has to be explained.

Q: If a particular liquid has a normal boiling point of 338.0 K and a vapor pressure of 75.0 mmHg at…

A: Given, Note: vapour pressure at normal boiling point = 1 atm Vapour pressure (P): P1 = 1 atm = 760.0…

Q: (1) Vapor pressure over ice is 0.3510 Torr at -28.00°C and 0.2318 Torr at -32.00°C (a) Find the…

A: Clausius - Clapeyron equation is used generally for such problems which is expressed as…

Q: B/What is the type of Imperfections In Solids that relies from applying shear stress? (also list the…

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Q: For 48-50, consider the phase diagram of substance OHM. 80 .D Solid 34 Liquid Pressure, bar 1.013 A…

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Q: A student collected the data shown below in order to determine the heat of vaporization of toluene.…

A: Given:

Q: Refer to the diagram to answer the questions below: At standard temperature and pressure, bromine…

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Q: QUESTION 4-) since the vapor pressure of solid uranium hexafluoride is given as temperatu lependence…

A: Introduction :  We have to calculate enthalpy of sublimation and vapor pressure .

Q: Use the References to access important values if needed for this question. The temperature…

A: lnp = ln A - ∆Hvap / RT  Write ∆Hvap as dH  p = ?

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A:

Q: Consider the phase diagram for certain material given below Pc =73 atm Critical point Liquid 10-…

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Q: Calculate the energy needed to melt 3.0g

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Q: TRUE OR FALSE Melting Point should be taken on dry solids only.

A: Yes it is true melting point should be taken of dry solid only . because if  it contains moisture…

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A: The balanced chemical reaction of SiO2 and N2 is as follows: 3SiO2 + 2N2  →  Si3N4  + 3O2

Q: Vapor pressure (mm Hg) 900 800 700 600 500 400 300 200 100 0 Carbon disulfide 10 20 30 Methanol 40…

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Q: The molar heat of vaporization will be determined by plotting log(P) versus -AH/RT + C log(P/P.)…

A:

Q: Why is the liquid-gas phase boundary in a single phase diagram component end at the critical point?

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A: Condensing is a process in which the substance phase changes from gas to liquid.

Q: Heat (1) In the table, T₁= 45.7 °C, E₁ = 185 J, E₂ = 836 J, E, = 1490 J, and E₁ = 2890 J.…

A: Given: T₁= 45.7 °C, E1 = 185 J, E₂ = 836 J, E3 = 1490 J, and E4 = 2890 J. m = 8.60 g Tfusion = 235…

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A:

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Q: Pressure (atm) 3 2.5 2 1.5 0.5 0 0 Solid A Solid B 100 Phase Diagram for Phippium 200 Liquid 300 500…

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A:

Q: 4.) (1 1000 - 100 - P 10 - e u 0.1 - e (atm) 0.01 - 50 100 150 200 250 300 350 400 450 500…

A: Note: According to the rules we can answer only first three parts. For another parts Pls repost…

Q: 2 According to the below given phase diagram, what is the approximate value of the normal boiling…

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A: (A) SOLID .

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Q: How do I find n air.

A: To solve for nair, we will be using the given equation: nair = PV/RT  Given values: P = 749.61 torr…

Q: Use the Trouton's rule to estimate the normal enthalpy of vaporization of a material that boil at…

A: The Troutons rule is an empirical relation relating the enthalpy of vaporisation and boiling…

Q: Which of the following processes may be observed upon heating a pure substance under conditions for…

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Q: What is glass transition and melting temperatures Tg and Tm? Briefly describe

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Crystallography

Crystallography is the category of science that focuses on the atomic and molecular arrangements with their bonding constituting the crystal structure. It is derived experimentally and originated in the year 1912. It is a combination of two words; those are crystal, meaning a cold drop, and graph, meaning writing.