The boiling point of liquid A is 75.5 °C at 1 atm (760.0 torr). Its vapor pressure at 15.5 °C is 185 torr. What is its AHvap in kJ/mol? 1 4 " 7 +/- Tap here or pull up for additional resources I 25 36 8 | kJ/mol . 9 0 X C x 100

Q: Two students measure the vapor pressure of the same unknown organic liquid and compare results. The…

A: The Clausius-Clapeyron equation is given as:

Q: 3. Water has a vapor pressure of 17.5 torr at 20 °C, at what temperature does water have a vapor…

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Q: (a) If 83.0 g of ice at 0.0oC is placed in 235mL of water at 28.0oC, find the final temperature of…

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Q: The normal boiling point of mercury (Hg) is 356.7 °C. What is the vapor pressure of mercury at 330.5…

A: From the given data,  With the given values of pressure (P2) and Temperature ( T1, T2)   We are…

Q: The figure below is the phase diagram of a purse substance. (1), (II) and (III) are the 3 phases of…

A: The phase diagram is a graphical representation of the physical states of a substance under…

Q: The vapor pressure of acetone (C;H,O) at 39.5°C is 400 torr. (a) If the boiling point of acetone is…

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Q: What gas law states that pressure and temperature are directly proportional at constant volume and…

A: At constant volume and moles formula is   P1/T1 = P2/T2

Q: 0 PM Wed Apr 5 K Question 52 of 62 For 2-methylbutane, the AH° of vaporization is 25.22 kJ/mol and…

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Q: Calculate the heat, in kJ, exchanged in the conversion of 20.0 g of steam at 104 °C to water at 10.5…

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Q: Ethanol (CH:CH2OH) has a boiling point of 78.23 °C. The liquid phase has a specific heat capacity of…

A: Matter have intermolecular force which is responsible for its physical state. Thermal energy may…

Q: ASAP PLEASE!  The boiling point of liquid B is 95.5 °C at 1 atm (760.0 torr). Its vapor pressure at…

A: Given -->  P1 = 325 torr P2 = 760 torr T1 = 73.5 °C = 346.5 K T2 = 95.5 °C  ∆Hvap = ? KJ/mol

Q: Determine the normal boiling point of a liquid with vapor pressure 63.8 mmHg at 36.50°C, given that…

A: Accoding to Clausius Clapeyron equation,At normal boling point, the vapor pressure equal= 760 mmHg

Q: The following information is given for ethanol, C₂H5OH, at 1atm: AHvap (78.4 °C) = 38.6 kJ/mol…

A: Given: Sample of liquid ethanol = 39.5 g Boiling point = 78.4°C

Q: Water is found to have a vapor pressure of 1 atm at 373 K. Let Hvaporization = 40.7 kJ/mol. What is…

A: We have given that  Water is found to have a vapor pressure of 1 atm at 373 K. Let Hvaporization =…

Q: What is the vapor pressure of ethanol (in mmHg) at 42.3 °C if its vapor pressure is 400.0 mmHg at…

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Q: Determine the vapor pressure (in mmHg) of a substance at 19°C, whose normal boiling point is 101°C…

A: Expression for Clasius -Clapeyron equation   Where  p1 = Initial vapor pressure p2 = Final vapor…

Q: A certain liquid has a vapor pressure of 92.0 Torr at 23.0 °C and 279.0 Torr at 45.0 °C. Calculate…

A: Given : We have to calculate delta H vaporization and normal boiling point.

Q: If 100.0 g of ice at -10.0°C is placed in 200. g of water at 90.0°C in an insulated container, what…

A: Given : Mass of ice = 100.0 g Initial temperature of ice = -10.0 oC Mass of hot water = 200 g And…

Q: If 100.0 g of ice at -10.0°C is placed in 200. g of water at 90.0°C in an insulated container, what…

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Q: What is AH in kJ for the process of freezing a 48.2 g sample of liquid water at its normal melting…

A: The energy required to convert the physical state from liquid to solid is called latent heat of…

Q: How much heat is released ( in J) when 54.0 g of water at 10.0 °C is cooled to form ice at - 10.0…

A: Given the mass of water, m = 54.0 g  The initial state is water at 10.0 oC.  The final state is ice…

Q: 1:29 < Notes LTE O September 12, 2023 at 1:29 AM Ethanol has an enthalpy of evaporation of…

A: T1 = Initial temperature = 78.4 °CT2 = Final temperature = 15°C We have to vapour pressure at 15°C

Q: Is giver oint = 100 °C AHvap(100 °C) = 40.7 kJ/mol heat liquid = 4.18 J/g°C Esure of 1 atm, kJ of…

A: Given, □Hvap = 40.7 kJ/mol Mass of water = 32 g Moles (n) = 32/18 = 1.78 mol

Q: A certain liquid has a vapor pressure of 92.0 Torr at 23.0 °C and 387.0 Torr at 45.0 °C. Calculate…

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Q: Calculate the pressure on top of Mt. Whitney (14,495 ft above sea level: the highest point in US…

A: Use Clausius-Clapeyron equation: 1. Convert temperatures to KelvinNormal boiling point 33.9°C…

Q: fountains, an explorer notes that the water for tea is boiling vigc table below to estimate the…

A: High in the mountains, an explorer notes that the water for tea is boiling vigorously at a…

Q: For the process X(1) → X(g), where X is a metal, AH°=334.4 kJ/mol and Asº-110.1 J/(K-mol). What is…

A: Here I am providing you the relation between Del H and Del S with Temperature  On the image provided…

Q: Consider the Sublimation of dry ice (solid carbon dioxide). The value of deltaHsub for CO2 is…

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Q: What is the vapor pressure of ethanol (in mmHg) at 58.9 °C if its vapor pressure is 400.0 mmHg at…

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Q: A certain liquid has a vapor pressure of 92.0 Torr at 23.0 °C and 386.0 Torr at 45.0 °C. Calculate…

A: Given : Vapour pressure of liquid at 23 oC = 92.0 torr And vapour pressure of liquid at 45.0 oC =…

Q: For the process X(1) X(g), where X is a metal, AH°-433.4 kJ/mol and AS°=101.1 J/(K mol). What is the…

A: GivenX(l) → X (g)∆H° = 433.4 kJ/mol1 kJ = 1000 J∆H° = 433400 J/mol∆S° = 101.1 J/K.mol

Q: What is the vapor pressure of ethanol (in mmHg) at 43.5 °C if its vapor pressure is 400.0 mmHg at…

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Q: easily found in an internet search. However, I can find AHfus (9.02 kJ/mol) and AHsub (26.0 kJ/mol).…

A: The enthalpy changes for the phase transition of CO2 are provided:

Q: At room temperature, 25°C, the vapor pressure of water is 23.8 Torr. Calculate the vapor pressure of…

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Q: The boiling point of propane at 1 atm (14.7 psi) pressure is -42.0 °C and its ∆H(vap) is 18.8…

A: The relationship between vapor pressure and temperature is given by clausius calpeyron equation…

Q: The molar enthalpy of vaporization of an organic compound is 9kJ/mol, and its normal boiling point…

A: The expression of Clausius – Clapeyron equation is shown below: ln P2P1 = ∆HR T2-T1T1T2 Where; P1 =…

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.