Why is cold water circulated through the condenser from the bottom rather than from the top?

Q: Why do do volatile substances,like alcohol and acetone, produce a cooling effect on a surface from…

A: In the process of evaporation, the liquid changes into the gaseous (vapor) state. The physical state…

Q: Cite Five Real-Life Applications of Cooling Curve and Freezing Point Determination.

A: Real Life application of Cooling curve and Freezing point determination-   (1) Cooling coughs is one…

Q: Evaporative cooling is most efficient in dry weather. Is true or False

A: Evaporative cooling It is the process of conversion of liquid water to vapour by absorbing the…

Q: 90 90 bpB Vapor 80 80 70 i+ 70 3D 60 Liquid 1+ 60 - 50 50 Vs 100% A 0% 80 20 60 40 40 60 20 80 0%…

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Q: molecules located on the surface of a liquid lack neighbors in the surface tenison? True or False

A: The surface tension of the liquid is defined as the molecules on the surface of the liquid that…

Q: would you not expect the saturation vapor pressure to fall zero, even at extremely low temperatures?

A: Increase in the temperature, increasing the average energy of the particles present. That means that…

Q: Why must boiling points be corrected for barometric pressure? Explain.

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Q: Why is it necessary to completely dry the Erlenmeyer flask, after removing it from the ice-bath?

A: If Erlenmeyer flask would not be completely dry =====> Some mass of water droplet added in the…

Q: Give four challenges and suggest solutions for those challenges in formation wettability

A: Wettability is a property of a liquid to make contact with the solid surface. Wettability is…

Q: Define Solid aerosol, solid foam and solid sol

A: Solid aerosols, solid foam, and solid sol are all heterogeneous solutions and classified as…

Q: Compare the specific heat of crystallization of sodium thiosulfate pentahydrate with the…

A: Sodium thiosulfate pentahydrate is a hydrated salt has a low melting point of 48 degree celsius.…

Q: What is the purpose of placing the round bottom flask in a warm bath during rotary evaporation

A: Rotary evaporation is the process of reducing the volume of a solvent by distributing it as a thin…

Q: 4.187/5.°0)(100°C-25°c) b) Calculate the amount of heat involved in the conversion of 25.00 g of…

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Q: As a physicist, you put heat into a 500.0 g solid sample at the rate of 10.0 kJ/min while recording…

A: Before going into the exact solution of this problem, let us try to understand what latent heat and…

Q: is the heat reauired to melt 51.8 of solid benzene, Cati at its melting. pent? ....

A: The mass of Benzene = 51.8 g To Calculate the heat required to melt the solid Benzene we required…

Q: When heating liquids in a test tube, why is the test tube moved back and forth across the flame?

A: ∙ When we heat the liquids in a test tube, we moved the test tube     back and forth across the…

Q: What is coal liquefaction?

A: Coal liquefaction has to be given below.

Q: Briefly describe the proper technique for heating liquids in test tubes to temperatures below 100…

A: There are number of techniques for heating liquids in test tube. Some of these are: heating on…

Q: Look up on the web or in a book or commune with the bear spirit on an astral plane and explain the…

A: Vapor diffusion crystallization = The vapor diffusion crystallization method is commonly used to…

Q: Can you give four real-life applications of cooling curve and determination of the freezing point of…

A: A question based on properties of solid that is to be accomplished.

Q: A 1.52 kg piece of granite [cp = 0.790 J/(g·°C)] at 60.0°C must be cooled to 24.0°C by submersion in…

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Q: Click on the region of this heating curve where a liquid phase coexists with a gas phase: 100 90 80…

A: The phase diagram given is,

Q: Carbon tetrachloride melts at 250. K. The vapor pressure of the liquid is 10,539 Pa at 290 K and…

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Q: Why is it preferable to allow cold water to enter at the bottom of a condenser and exit at the top…

A: To define: Why it is preferable to allow cold water to enter at the bottom of a condenser and exit…

Q: The heat of fusion of a certain material is 3.5 kJ/mol and its heat of deposition (gas to solid) is…

A: The amount of the material is = 5.78 g The heat of fusion of this material is = 3.5 kJ/mol The heat…

Q: seawater sample contains 2.5% NaClNaCl (MW=58.44 g/mol) by mass. Calculate the normal boiling point…

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Q: substance melts sharply at 135°C. Is it a pure compound? Explain.

A: If any substance has range of temperature of melting point that meansthat substance have some…

Q: How many grams of steam at 100 oC must be mixed with 200 g of water at 20 oC in order for the…

A: Given data Initial mass of water = 200 gms                   Its initial temperature = 20°C Initial…

Q: A substance melts sharply at 135°C. Is it a pure compound?

A: Substances that melt sharply at a particular temperature are pure substances.  Substances melt at a…

Q: How much heat is required to convert 55.0g of liquid water at 22.0°C to steam at 105°C?

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Q: H20 N Oven H&0,N2 90°C latm 130°C 9.6atn

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Q: What should be the surface tension of a liquid if its density, which is 1.44 g/cc, is the same as…

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Q: What is the best way to extract water from air?

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Q: Why is it much easier to pour honey when it is hot than when it is cold.

A: Every molecule has the ability to flow, the resistance to the flow of molecules is called viscosity.…

Q: How much heat is required to change 225g of ice at 205K into liquid water at 305K?  Remember that…

A: The heat required to change 225g of ice at 205K into liquid water at 305K can be found from the…

Q: Vapor Pressure Versus Temperature Diethyl ether Water Mercury -100 0 34.6 100 200 357 400…

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Q: Calculate the heat required to bring 10.0 g CCl2F2 from -29.8 °C as a liquid to the gas phase at…

A: It is given that 10 g of CCl2F2 is at -29.8°C initially that is its boiling point and is change into…

Q: QUESTION 6-) the temperature dependence of the vapor pressures of solid and liquid carbon dioxide is…

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Q: On a warm summer day Mrs. George sliced some strawberries and placed them in a zippered sandwich bag…

A: When it came to storing strawberries, moisture seemed to be the biggest enemy. You want to make sure…

Q: F B. Gas Triple point! Solid-vapor 0 0.01 100 374 Temperature (in °C)

A: step 1) The three states solid, liquid and gas are most likely to associate with the temperature and…

Q: The normal boiling point of hexane is 69°C. Estimate 1. its enthalpy of vaporization and 2. its…

A: Normal Boiling point of Hexane = 69°C = 342.15 K  ( Temperature in K = Temperature in 0C + 273.15 )…

Q: Why do do volatile substances,like alcohol and acetone, produce a cooling effect on a surface from…

A: Volatile substances are those substances that can change their state from liquid to vapor phase…

Q: What is the difference between plasma state and super cooled state?

A: Super cooled state is defined as a state at which a liquid is cooled below its freezing point…

Q: Determine the amount of heat, in kJ, required to heat 100.0 g of liquid Ca at 851C to 951C. Melting…

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Q: The direction of the cooling water is O 2 to 9 9 to 2 O 5 to 7 O 7 to 5

A: Distillation is a process to purify water. In this process, the liquid water is heated to form…

Q: Calculate the heat required to bring 10.0 g CCl2F2 from -29.8°C as a liquid to the gas phase at…

A: Heat is the type of energy that is exchanged between various temperature environments or objects…

Q: is required to completely melt 283.67 g of silver at 1234K? Report your answer to two decimal…

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Q: Write applications of Stobbe’s condensation.

A: Stobbe's condensation: In this condensation reaction, the esters react with succinic acid inn…