The latent heat of fusion of water at 0Cis 6.025 kJ/mol and the molar heat capacities (Cp,m) of water and ice are 75.3 and 37.7 J K-1 mol-1, respectively. The Cp values can be taken to be independent of temperature. Calculate H for the freezing of 1 mol of supercooled water at -10.0C.

Q: A refrigerator cools by evaporating liquefied dichlorodifluoromethane, CCl2F2. How many kilograms of…

A: The mass of water is 525 g and the molar mass of water is 18.02 g/mol. Using the relation between…

Q: Given that the heat of vaporization of 1 propanol is 47.2 kj/mol, and the vapor pressure is 10.0…

A: The heat of vaporization of 1 propanol is 47.2 kJ/mol and its vapor pressure is 10.0 torr at 14.7…

Q: Carbon tetrachloride, CCl4, was once used as a dry-cleaning solvent but is no longer used because it…

A:

Q: An organic solvent with a molar mass of 56.45 g/mol have a normal boiling point of 45.0 °C and a…

A: According to the question we have, Mass of liquid is given by = 24.0 g Specific heat capacity of the…

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: Determine the vapor pressure in mm Hg of a substance at 45 C if its normal boiling point is 115 C…

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Q: In kJ/mol, what is the enthalpy kf vaporization, Hvap, for a substance that has a vapor pressure or…

A: We will solve this question using clausius clapeyron equation.

Q: How much heat is required to evaporate 100.0g of liquid ammonia, NH3, at its boiling point if it's…

A: When a liquid converts into a vapor state it absorbs heat. The amount of heat absorbed when one mole…

Q: Determine the normal boiling point of a liquid with vapor pressure 63.8 mmHg at 56.50°C, given that…

A: Given: P1= 1 atm= 760 mm Hg P2= 63.8 mm Hg T2= 56.50°C= 56.50+273.15 K= 329.65 K ∆Hvap=43.5 kJ/mol…

Q: How much heat is required to evaporate 100.0 g of liquid ammonia, NH3, at its boiling point if its…

A: Given: Mass of NH3  = 100.0 g ΔHvap = 4.8 kJ/mol

Q: 1. The vapor pressure of a liquid doubles when the temperature is raised from 85.0 to 95.0°C. The…

A: Vapour pressure of the liquid is defined as the pressure exerted by the vapours of liquid on the…

Q: How much heat (in kJ) is required to convert 423 g of liquid H2O at 24.8°C into steam at 147°C?…

A:

Q: The vapor pressure of water at 55ºC and 65ºC are 118.1 torr and 187.7 torr, respectively. What is…

A:

Q: The vapor pressure, P, of a certain liquid was measured at two temperatures, T. The data is shown in…

A: Plot of  ln(P) Vs 1/T, to determine the enthalpy of vaporisation.

Q: What amount of heat (in kJ) is required to convert 10.1 g of an unknown solid (MM = 83.21 g/mol) at…

A: We will write all steps occuring in the change os solid to liquid , then calculate heat required.

Q: What is the vapor pressure of a liquid (in mmHg) at 308.01 K if its ∆Hvap = 28.9 kJ/mol and its…

A: The vapor pressure of any liquid at its normal boiling point = 760 mmHg  Hence, at normal boiling…

Q: The molar enthalpy of vaporization of carbon disulfide is 26.74 kJ/mol , and its normal boiling…

A: Given : Molar enthalpy of vaporization of CS2 = 26.74 kJ/MolNormal boiling point = 46°cTemperature =…

Q: The enthalpy change for converting 10.0g of ice at -50.0 C to water at 50.0 C is ____ KJ. The…

A: Given information:Mass of ice = 10.0 gInitial temperature = -50.0 oCFinal temperature = 50.0…

Q: he organic compound n-hexane, C6H14, boils at 69.0°C. What is its molar heat of vaporization in…

A: We have to calculate the molar heat of vaporization.

Q: The molar enthalpy of vaporization of hexane (C6H14) is 28.9 kJ/mol, and its normal boiling point is…

A: Clausius – Clapeyron equation is used to calculate the vapor pressure at another temperature…

Q: The vapor pressure of liquid diethyl ether, C,H;OC,Hs, is 100. mm Hg at 262 K. A sample of C,H;OC,Hg…

A: Given: Vapor pressure of diethyl ether = 100 mmHg. Initial volume of container = 530 mL. Final…

Q: Determine the heat flow (in units of kJ) when 49.7 g water at 131.3°C is lowered to 82.6°C? molar…

A: The heat energy formula shows relation of mass specific heat capacity and change in temperature. The…

Q: How long would it take for 1.50 mol of water at 100.0 ∘C to be converted completely into steam if…

A: By calculating total heat required to convert into steam , we can calculate time.

Q: What amount of heat (in KJ) is required to convert 25.6g of an unknown solid (MM =83.21g/mol) at…

A: Heat will be used in three processes,  1)   rising of temperature of solid till freezing point. 2)…

Q: A 417.3 gram sample of an unknown substance (MM = 92.41 g/mol) is heated from -23.1 °C to 51.8 °C.…

A: To solve this problem we will use the formula  q = m•c•∆T  Where, q = heat absorbed or released  m =…

Q: The molar heats of fusion and sublimation of lead are 4.77 and 182.8 kJ/mol, respectively. Estimate…

A: Given Data: The heat of fusion is 4.77 kJ/mol. The heat of sublimation is 182.8 kJ/mol.

Q: What amount of heat (in kJ) is required to convert 21.4 g of an unknown solid (MM = 67.44 g/mol) at…

A: Mass of Unknown solid = 21.4 g = MMolar mass of Unknown solid = 67.44 g/moleNo of moles of Unknown…

Q: What is the vapor pressure of Ag at 2365.8 K if its heat of vaporization and boiling point are…

A: boiling point = T1 = 2485.2 K We know that liquid boil at 1 atm pressure So, intial vapor pressure =…

Q: The vapor pressure, P, of a certain liquid was measured at two temperatures, T. The data is shown in…

A: Here we are required to find the Enthalpy of vaporization .

Q: When water is supercooled, it freezes at a temperature below 0.0°C. If 10.9 KJ of heat is released…

A: Concept - This question is based on Kirchhoff's law of thermodynamics. which states,…

Q: The vapor pressure, P, of a certain liquid was measured at two temperatures, T. The data is shown in…

A: The graph will be plotted between ln P (y-axis) v/s 1/T (x-axis). The points will be as followed:…

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: A 25.5-g sample of ice at -10.0°C is mixed with 110.0 g water at 85.0°C. Calculate the final…

A: Given that : Mass of ice=25.5 gTemperature of ice=-10°CMass of water=110.0 gTemperature of…

Q: Calculate the amount of heat needed to melt 120.0 g when H,el 109 J/ g of pure ethanol and the…

A: Heat required to melt of a compound is the energy requirement to convert that compound from its…

Q: Given that the heat of fusion of water is -6.02 kJ>mol, the heatcapacity of H2O(l) is 75.2…

A: Data given :  The heat capacity of H2O (l)  = 75.2 J/mol⋅K = 0.0752 kJ/ mol.K The Heat capacity of…

Q: How much heat energy is required to convert 84.0 g (1.82 mol) of liquid ethanol (C2H5OH) at 50.0 °C…

A: Given: Specific heat capacity of ethanol = 2.45 J/g⋅ oC Mass of ethanol = 84.0 g moles of ethanol =…

Q: What amount of heat (in kJ) is required to convert 30.0 g of an unknown solid (MM = 67.44 g/mol) at…

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Q: Calculate the enthalpy of vaporization (AHvap) in kJ/mol for this liquid.

A:

Q: A 389.7 gram sample of an unknown substance (MM = 92.41 g/mol) is heated from -23.1 °C to 51.8 °C.…

A: We are changing the sample from solid to liquid. During this process, energy is supplied in three…

Q: The molar enthalpy of hexane (C6H14) is 28.9 kJ/mol, and its normal boiling point is 68.73 °C. What…

A: The normal boiling point is the temperature when external pressure equals 760 mmHg.Clausius –…

Q: 2. Below is the phase diagram of sulphur. At 95.4°C, the densities of rhombic and monoclinic sulphur…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: Determine the normal boiling point of a liquid with vapor pressure 63.8 mmHg at 64.50°C, given that…

A: We are given that the vapor pressure of the gas is 63.8 mmHg at 64.5°C and the molar heat of…

Q: 7. The molar enthalpy of vaporization of hexane (C6H14) is 28.9 kJ/mol, and its normal boiling point…

A:

Q: A 417.3 gram sample of an unknown substance (MM = 92.41 g/mol) is heated from -23.1 °C to 51.8 °C.…

A: moles n is defines as the mass taken upon molar mass  moles =mass molar massmoles of unknown…

Q: The molar enthalpy of vaporization of carbon disulfide is 26.74 kJ/mol, and its norml boiling point…

A: Clausius-Clapeyron equation pertains to the relationship between the pressure and temperature. It is…

Q: From the following vapor pressure data for ethanol, an estimate of the molar heat of vaporization of…

A: use clausius clapeyron equation to find the molar heat of vaporization of Ethanol  Let  Initial…

Q: The latent heat of fusion and vaporization of water is 333.6 J/g and 2256.7 J/g respectively at the…

A: given:  latent heat of fusion =333.6J/g            latent heat of vaporization of water =2256.7j/g…

Q: What amount of heat (in kJ) is required to convert 26.9 g of an unknown solid (MM = 67.44 g/mol) at…

A: Answer is explained below. Given, Mass of unknown solid = 26.9 g. Molar mass of solid = 67.44 g/mol.…

Q: Calculate the quantity of heat required to convert 70.5 g of H2O(s) at -25°C to H2O(g) at 125°C.…

A: