Ethanol has an enthalpy of vaporization of 39.4kj/mol. The compound has a vapor pressure of 1.00 at at 78.3°C . At what temperature is the vapor pressure equal to 0.618 atm? (R= 8. 314j/ K×mol

Q: Liquid butane is used in cigarette lighters. The boiling point of butane at 1 atm pressure is -1.0…

A: We would use Clausius Clapeyron equation to solve this question.

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: Given that the normal boiling point of CH3COCH3 is 56 °C, which of the following statements about…

A: Solutions Hence option (B) is correct answer The entropy of the surroundings increases

Q: A substance has a vapor pressure of 31.3 torr at 633°C and 332.9 torr at 823°C. Calculate its heat…

A: To find the heat of vaporisation we can use The Clausius Clayperon Equation. The Equation is as…

Q: quid mercury solidifies at –38.83 °C and boils at 356.73 °C. Identify the type(s) of phase(s)…

A: Here we have to determine the state of mercury if 3.57 Kj  heat is removed 10 g mercury vapour at…

Q: Diethyl ether is a common solvent in organic chemistry. The vapor pressure of diethyl ether is 401…

A:

Q: Suppose that 0.95 g of water condenses on a 75.0-g block of iron that is initially at 22 °C. If the…

A: To calculate the final temperature of iron block, the energy is calculated from the condensation of…

Q: The vapor pressure of water at 20C is 25 mmHg and 525 mmHg at 90C. Calculate the heat of…

A: Given: The vapor pressure of water  P1=    25 mmHg At 20°C P2 =   525 mmHg at 90°C

Q: The molar heat of fusion of benzene (C6H6) is 9.92 kJ/mol. Its molar heat of vaporization is 30.7…

A: The question is based on the concept of chemical thermodynamics. We have  to calculate  heat…

Q: The molar enthalpy of vaporization of boron tribromide is 30.5 kJ/mol, and its normal boiling point…

A: Given values-> Enthalpy of vaporization = 30.5kj/mole =30.5×1000j/mole = 30500j/mole T1= 91°C…

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: The heat of vaporization of hexane is 30.8 kJ. mol-1. The boiling point of hexane at a pressure of…

A:

Q: Mercury (Hg) vapor is toxic and readily absorbed from the lungs. At 20.∘C, mercury (ΔHvap = 59.1…

A: Given data Vapor pressure [ at T1 = 20 oC ]     ,    P1 = 1.20x10-3 torr ΔHvap = 59.1 kJ/mole Safer…

Q: will result in a sample of liquid iodine?

A: From the phase diagram,  we can identify the phases of iodine So, if we start from triple point and…

Q: The vapor pressure of ethanol, C2, H5, OH, at 50.0°C is 233 mm Hg, and its normal boiling point at 1…

A:

Q: Suppose that 1.10 g of rubbing alcohol (C3H8O) evaporates from a 67.0 g aluminum block. If the…

A: Mass of alcohol = 1.10g Moles of alcohol = 1.10g/60g/mol= 0.0183 mol Heat of vaporisation =…

Q: A 523.70 g sample of acetone gas has a temperature of 56.0°C. How much heat is involved in…

A: Data given: Formula: C3H6O Melting Point: -94.0°C Boiling Point: 56.0°C Density of liquid: 0.791…

Q: For water, specific heat values for the solid and liquid phase are 2.00 J/gC and 4.18 J/gC…

A: Introduction: Phase diagram is shows the relationship of physical states of a substance under…

Q: Calculate the amount. of heat required to completely evaporate 625 ml of water at 25C. the enthalpy…

A:

Q: Water has a normal boiling point of 100.00oC.  What is the vapor pressure of water at 65.50oC in…

A: Given : Normal boiling point = 373K   ΔHvap = 40.79 kJ/mol.

Q: The vapor pressure, P, of bromine at several temperatures, T, is given in T (K) Р (Torr) the table.…

A:

Q: Which substance exhibits stronger attractive intermolecular forces?  SiF4  SiCl4 Which substance has…

A: Thus for vaporization, higher temperature is required for the silicon tetrachloride rather than…

Q: A sample of C3H4 B42 has a normal boiling temperature of 131.5 C. The enthalpy of vaporization for…

A: The question is based on the concept of phase transition. we have been given normal boiling point of…

Q: The vapor pressure of acetone (C3H,O) at 39.5°C is 400 torr. (a) If the boiling point of acetone is…

A:

Q: At 1.00 atm, water boils at 100oC (373 K). In Denver, Colorado, water boils at about 94oC (367 K).…

A: For all the liquids , when temperature increases there is increase in pressure as well. That…

Q: A 4.7-L sealed bottle containing 0.33 g of liquid ethanol,C₂H₆O, is placed in a refrigerator and…

A:

Q: (Q43) The normal boiling point of acetone is 56.1°C and its AHvap at its boiling point is 29.1…

A: Given: Normal boiling point of acetone = 56.1 oC ΔHvap of acetone = 29.1 KJ/mol = 29100 J/mol.…

Q: 14. The vapor pressure of ethanol is 114.9 mm Hg at 37.1 °C. Its molar heat of vaporization is 39.3…

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Q: The vapor pressure of methanol at 20.0 oC is 97.7 torr. The normal boiling point of methanol is 64.7…

A: Given data,T1(Temperature of methanol)=20.0oC=20.0+273.15=293.15KP1(pressure of methol)=97.7 torrT2(…

Q: Calculate the enthalpy of vaporization of nitric acid. If the vapor pressure of nitric acid is 26.6…

A:

Q: Which of the following is a true statement about vapor pressure? O Vapor pressure is directly…

A: Interpretation: The given two multiple choice questions are to be solved.

Q: 2. The heat of vaporization of water at 1000C is 2.26 kJ/g; at 370C it is 2.41kJ/g. a. What is the…

A: Given ∆Hvap at 100°C = 2.26 KJ/g  ∆Hvap at 37°C = 2.41 KJ/g  We have to find standard molar heat of…

Q: The standard heat of vaporization for water is 40,700J/mol. What is the boiling point of water at a…

A: By Clausius-Clayperon equation lnP2P1= △HR(1T1- 1T2) △H=Heat of vaporizationP2 = Final  pressureP1=…

Q: A liquid has a ΔH°(vaporization) of 33.3 kJ/mol and a boiling point of 125°C at 1 atm. What is its…

A: Vapor pressure is a thermodynamic equilibrium with its concentration at temperature is a closed…

Q: The vapor pressure of a liquid doubles when the temperature is raised from 91°C to 99°C. At what…

A: In this question we have calculated the temperature on increasing the pressure to six times to value…

Q: If 42.0 kJ of heat is added to a 32.0-g sample of liquid methaneunder 1 atm of pressure at a…

A: Introduction: Specific heat equation: The specific heat is the quantity of heat per unit mass…

Q: The vapor pressure of liquid methanol, CH3OH, is 100. mm Hg at 294 K. A 6.09×10² g sample of liquid…

A: The expression of ideal gas equation is shown below: Where; P = pressure V = volume n = moles T =…

Q: 50°C at a constant pressure of 1 atm. Note that the pressure and temperature values are just…

A:

Q: Naphthalene, a substance present in some mothballs, has a molar heat of vaporization of 49.4 kJ/mol.…

A: Here naphthalene liquid and gas are in equilibrium. So when solid and gaseous compound are in…

Q: Carbon disulfide, CS 2, has a heat of vaporization of 29,200 J/mol.  The normal boiling point* of CS…

A: Clausius-Clapeyron equation shows how pressure and temperature vary with respect to each other that…

Q: A 2.80−g sample of water is injected into an evacuated 6.00−L flask at 65.0°C. What percentage of…

A: The ideal gas law describes how the pressure P, volume V, and temperature T of an ideal gas are…

Q: Suppose that 0.95 g of water condenses on a 75.0 g block of iron that is initially at 22°C. If the…

A: Given, mass of water =0.95 g         Mass of iron block=75 g       Enthalpy of vaporization of water…

Q: Use the phase diagram of Substance X below to find the pressure at which the boiling point of X is…

A: The diagram which represents the thermodynamic conditions of a substance (X) at a different…

Q: tial oil fol in cloves, eugenol, can be isolated by steam easurable vapor pressure at 100 °C even…

A: Solution- .Given partial vap pressure of Eugenol = 4 mm HgHg partial vap pressure of Eugenol = 4 mm…

Q: The vapor pressure of mercury at 298 K is 0.00270 mmHg. If the normal boiling point of mercury is…

A: Use Clausius Clapeyron equation to solve this,ln P1P2 = ΔHvapR1T2 - 1T1 Given that,T1 = 298 K P1 =…

Q: The vapor pressure of liquid aluminum is 400 mm Hg at 2.59x10 K. Assuming that its molar heat of…

A: The vapor pressure of liquid aluminium at the given temperature can be calculated using equation…

Q: certain substance has a heat of vaporization of 52.85 kJ/mol. At what Kelvin temperature will the…

A: Given-> Heat of vaporization (∆Hvap) = 52.85 KJ/mole ∆Hvap = 52850 J/mole T1= 287 K P1=P  P2 = 3…