The temperature is 78°F and the dewpoint is 59°F. Find the ratio of vapor pressure to the saturation vapor pressure of air.

Q: Assume the total heat of vaporization (per gram) of water can be used to supply the energy needed to…

A:

Q: The state of a substance when the pressure and temperature are above the critical temperature and…

A: Critical temperature is the temperature above which a gas can't be liquify by applying pressure.  At…

Q: order these with rising density glass liquid  gas crystal plasma

A: Density order is Solid >crystal > liquid >gases >plasma .

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: Theoretically, the inherent viscosity for solutions (not pure solvents) should always be  a.…

A: Inherent Viscosity ηi = ln ηr/c ln ηr is zero for puresolvent and increases with increasing…

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: solid → gas [ Select ] %3D [ Select ] solid → liquid FREEZING MELTING liquid → solid SUBLIMATION…

A: Phase change are identified below:

Q: Give an instance where it is allowable to ignore safety protocols. Why?       2. State the proper…

A: Lab saftey are important for the students as well as Professors  working there . It is always…

Q: CHEM. 345 Experiment name: Elevation of the boiling point. Q.1:-Purpose Q.2:-Theory O 3:-Discussion

A:

Q: In getting/testing the surface tension of a liquid, what is the importance of collecting more than…

A: Interpretation -  What is importance of collecting more than one drop of the liquid sample from the…

Q: What is supercritical fluid?

A: ANSWERE IS DISCUSSED BELOW :

Q: Discuss how relative humidity in a cold storage room can influence the vapor pressure deficit.

A: Interpretation -  To discuss how relative humidity in a cold storage room can influence the vapor…

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: 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: When using dew point temperature(°C)in Wexler’s equation, rather than air temperature,the equation…

A: Given: Air temperature:51°F(10.55°C) Dew pointtemperature: 44°F (6.67°C)

Q: Select all options that will increase the SPEED of dissolving of solids in a liquid. Increasing the…

A: Solubility is the maximum amount of a substance that will dissolve in a given amount of solvent at a…

Q: A liquid property responsible for its resistance to flow is called what?

A:

Q: What is the symbol, SI unit and formula of boiling & melting point?

A: Answer - Boiling point - The boiling point of a substance is the temperature at which the vapor…

Q: Why does decreasing surface area of food slow down the speed at which it cooks?

A: The rate of a chemical reaction can be raised by increasing the surface area of a reactant.  If the…

Q: Explain why the flow of a compressed gas must be controlled for practical and safe use.

A: The reason why the flow of compressed gas must be controlled for practical and safe use has to be…

Q: draw an atomic/molecular level representation of what you think the solvent (H2O) looks like before…

A: Water is a polar molecule, which is liquid at standard temperature and pressure. Water molecules can…

Q: explain what advantage the technique of reflux has over conventional boiling

A: Refluxing is a technique that is used to boil a mixture over a long period of time. In this…

Q: When delivering a liquid to a flask using a volumetric pipet, make sure that    a. the pipet is…

A: Volumetric pipet used for the measurement of the volume of the liquid. In the volumetric analysis,…

Q: partial press partial pressure of the rest of the gases in the container other than the oxygen? Be…

A:

Q: The data below were obtained from an unknown liquid following this lab procedure. Calculate the…

A: In this problem, we have to calculate the mass of an unknown substance obtained after an experiment.…

Q: Given below is the figure of contact angles of a liquid sample. Which among these contact angles…

A:

Q: An unknown substance was subjected to boiling point determination. Temperature is recorded at 75℃…

A: In the method of finding boiling point of substance using capillary tube, when the bubbles escape…

Q: Water and ethanol, although they are both clear liquids, can be distinguished from each other by…

A: Water and ethanol have different properties like ethanol ignite easily in presence of oxygen and…

Q: Can you interpret this graph. Normally on a temperature-composition phase diagram, there is a bubble…

A: Liquids that are miscible to each other to a limited extent are termed partially miscible liquids…

Q: what is denser water or chloroform? why? elaborate

A: Chloroform (CHCl3) is a nonpolar liquid. On the other hand (H2O) is a polar liquid. The molar mass…

Q: Describe method of acid vapor Pressure.

A: Menometric method

Q: Explain the difference between constant rate filtration and constant pressure difference filtration…

A: Answer - According to the question - Given - filtration - Filtration is a physical separation…

Q: Q.1/ For Simple Cubic shown in figure below, determine the fraction of the volume filled with hard…

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Q: pressure (atm) 0.8- 04 solid liquid 100 gas 200 temperature (K) this diagram to answer the following…

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Q: How does the ramp rate affect the actual AND observed melting point?

A: Thermal rate effect the actual melting point of subtance, higher the ramp rate higher the observed…

Q: Are there any alternatives for a rotary evaporator?

A: Rotary evaporator is an equipment used in chemical laboratories to separate the solvents and the…

Q: In simple distillation the thermometer bulb should be placed only a few millimeters below the side…

A: Distillation is an analytical process to separate two liquids based on the volatility of the liquid.…

Q: For numbers 7-8, refer to the figure below. 95 90 85 80 75 70 65 60 55 Region I Region II Region III…

A: Answer: Given curve is the cooling curve of the substance where in region-I we are decreasing the…

Q: 1. The vapor pressure of an unknown liquid was measured as described in this experiment: Pressure…

A: Conversion factors required; 0oC = 273K where, K is used to represent kelvin.

Q: The state/s of water that exist at 100°C is/are (select all choices that apply):   Gas   All…

A: physical state of water at 100 degree centigrade is both liquid state as well as gaseous state. We…

Q: A flammable liquid will emit enough vapors to be ignited by a spark source at temperatures: a)above…

A: Flammable liquids are those liquids which can easily burn by a certain ignition source. They egt…

Q: The existence of ____________ vapor can be located/achieved above its critical temperature. *…

A: Answer is c. Gaseous here is supporting reason

Q: You wish to accurately pipet a liquid that is stored in 4°C cold room without allowing it to warm…

A: A pipette is a kind of glassware used for measuring certain volumes of liquids or solutions with…

Q: Match the letter on the diagram, with the term that identifies that point 1.00- 0.00o 600 001 Too 00…

A: When there is study of different phases of a component, it will come under the study of phase…

Q: Sam knows that he has one of 3 possible liquid unknowns: tetrahyrofuran (bp 65-67°C), ethyl acetate…

A: First mistake he has done is not to observe the temperature change using thermometer. Instead he was…

Q: maximum temperature for washer/water mixture Change in temperature of washer Change in temperature…

A: Mass of water = 57.8546 - 7.9888 = 49.8658 g Heat gain / loss = mass X specific heat X change in…

Q: Define the volumetric phenomenon and surface phenomenon.

A: Qualitative analysis is a branch of chemistry that deals with the identification of elements present…

Q: how do we find the average of the molar mass of these unkown liquid? how to express the water bath…

A: Given equation,      MM = d × R × TP