Calculate the heat required to completely sublime 91.0 g of solid CO2 at 195 K, its normal sublimation point. The heat of sublimation for carbon dioxide is 25.2 kJ/mol. 4740 kJ 159 kJ 12.2 kJ 1.75 kJ 52.1 kJ

Q: What is the expected value for the heat of sublimation of acetic acid, in kJ/mol, if its heat of…

A: As we know that – According to Hess's law of constant heat summation, the heat absorbed or evolved…

Q: Sketch the phase diagram for oxygen using the following data:                 Triple Point…

A:

Q: The standard enthalpy of vaporization (H°vap) of carbon tetrachloride (CCl4) is 34.6 kJ/mol. The…

A:

Q: 36. The melting point and boiling point of a substance is 70 °C and 450 °C respectively; its…

A:

Q: At 20.11 °C, the vapor pressure of a particular compound is 8.22 kPa, and at 146.6 °C, its vapor…

A: Dear student , since you have posted multiple questions we will allow to solve only first question…

Q: What is the vapor pressure of acetic acid, CH3COOH, at 336.0 K if its heat of vaporization and…

A: Clausius Clapeyron equation would be used to calculate the vapour pressure at 336.0 K .  Given that…

Q: What is the enthalpy change during the process in which 100 g of liquid water at 50.0°C is cooled to…

A: Cooling of water from 50°C to 0°C    Given:  m = 100g  ∆t = 0°C - 50°C = -50°C  cH2O(l) = 4.184…

Q: The following information is given for water at latm: boiling point = 100 °C AHvap(100 °C)-40.7…

A: The mass of solid water sample is = 44.1 g The heat of fusion of water at its normal melting point…

Q: A solution of carbon tetrachloride and acetic acid CH3COOH that is 90.% carbon tetrachloride by mass…

A: Given:

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 following information is given for copper at 1atm: AHvap(2567 °C) = 305 %3D boiling point 2567…

A: Boiling point of copper= 2567 °C                  ∆HVap = 305 KJ/molMelting point of copper = 1083…

Q: Using the data shown below for water, determine in the following heating curve what region the water…

A:

Q: A common solvent has a heat of vaporization of 38.56 kJ/mol and a normal boiling point of 78.4°C.…

A:

Q: The molar heat of fusion of sodium metal is 2.60 kJ/mol, whereas its heat of vaporization is 97…

A: The required heat amount for altering the substance's state from one into another state is termed as…

Q: Liquid nitrogen can be used as a cryogenic substance to obtain low temperatures. Under atmospheric…

A: Liquid nitrogen can be used as a cryogenic substance to obtain low temperatures.

Q: 22. The molar enthalpy of vaporization of an organic compound is 2kJ/mol, and its normal boiling…

A: The molar enthalpy of vaporization of an organic compound is, ∆Hv=2kJ/mol∆Hv=2000 J/mol The normal…

Q: A common solvent has a heat of vaporization of 37.3 kJ/mol and a normal boiling point of 110.6°C.…

A: Answer:- this question is answered by using the simple concept of Clausius clapeyron equation which…

Q: Which of the following phase diagrams corresponds to a system wherein boiling occurs before the two…

A: For the liquid-liquid phase diagram, the phase diagram that represents a system wherein boiling…

Q: liquid has vapor pressure is 54.6 torr at 20 °C and 300.0 torr at 82°C. Calculate its heat of…

A: The Clausius-Clapeyron equation is used to relate temperature and vapor pressure of a liquid. The…

Q: Substance X has a freezing point of 85°C with an entropy change of -35 J/K. Calculate the enthalpy…

A: When a solid changes into liquid at its melting point the entropy of the system increases.

Q: What amount of heat (in kJ) is required to convert 16.6 g of an unknown solid (MM = 67.44 g/mol) at…

A: We have to find amount of heat (in kJ) is required to convert 16.6 g of an unknown solid (MM = 67.44…

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: he phase diagram for a pure substance is shown above. Use this diagram and your knowledge about…

A: This is the phase diagram of water. A) Point V represents the Triple point. At this triple point,…

Q: A particular refrigerant cools by evaporating liquefied CCI 2F 2. How many kg of the liquid must be…

A: Given: Mass of water to be frozen = 525 g. Molar heat of fusion of ice = 6.01 KJ/mol. And molar heat…

Q: A particular refrigerator cools by evaporating liquefied dichlorodifluoromethane, CCl,F. How many…

A: since the energy released by the freezing of ice should be used in the evaporation of…

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: The following information is given for antimony at 1 atm: AHvap(1440 °C) = 195 kJ/mol AHfa(631 °C) =…

A:

Q: Monoclinic 1 atm liquid 153°C, 1420 atm 95.39°C, 1 atm Rhombic 95.31°C, 5.1 X 10 atm gas this is not…

A:

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 amount of heat (in kJ) is required to convert 10.1 g of an unknown solid (MM = 67.44 g/mol) at…

A: Given : Initial temperature of solid = -15.4 oC Final temperature of solid = 42.7 oC Mass of solid =…

Q: The following information is given for chromium at 1 atm: AHvap(2672 °C) AHfus (1857 °C)= 14.64…

A:

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

A:

Q: The following information is given for magnesium at 1 atm: boiling point = 1090 °C AHvap(1090 °C) =…

A: The solution is as follows :

Q: At 1.4 bar, the boiling point of water is 373 K. At what pressure (in bar) does water boil at 473 K?…

A: Given: Pressure=1.4 barInitial temperature=373 KFinal temperature=473 K∆Hvap=40.65 kJ/mol…

Q: The following information is given for cadmium, Cd, at 1 atm: Boiling point = 765.0°C   Heat of…

A: Given that: Heat of fusion = 13.0 cal/g mass of sample =  27.5 g  To find: Energy removed in…

Q: Given the phase diagram, what is the normal melting/freezing point of the substance? 2.00 1.75 1.50…

A: When a liquid converts into solid it is known as Freezing. And When a solid converts into a liquid…

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: Mass of unknown sample = M= 389.7 gMolar Mass of Unknown Sample = 92.41 g/moleNo of moles of Unknown…

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: 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…

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: 36. The melting point and boiling point of a substance is 70 °C and 450 °C respectively; its…

A: For the transformation of solid to gas, the heat required in the following process :      1)…

Q: A 249.3 gram sample of an unknown substance (MM = 92.41 g/mol) is heated from -23.1 °C to 51.8 °C.…

A: Given: The mass of the sample, (m) = 249.3 g. The molar mass of the sample, (M) = 92.41 g/mol. The…

Q: Vapor pressure (mm Hg) 900 800 700 600 500 400 300 200 100 0 Carbon disulfide 10 20 30 Methanol 40…

A: Introduction The pressure exerted by a vapour with its condensed phases (solid or liquid) in a…

Q: A 459.3 gram sample of an unknown substance (MM = 92.41 g/mol) is heated from -23.1 °C to 51.8 °C.…

A:

Q: What amount of heat (in kJ) is required to convert 11.1 g of an unknown solid (MM = 83.21 g/mol) at…

A: Hi, we are supposed to answer one question. To get the remaining questions solved please mention the…

Q: What mass of this substance must evaporate to freeze 210 gg of water initially at 25 ∘C∘C? (The heat…

A:

Q: The vapor pressure of 1-propanol is 10.0 torr at 14.7 °C. If the heat of vaporization of 1-propanol…

A: We have to calculate the vapour pressure at 68.8°C.

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.…