A liquid with an enthalpy of vaporization, AHv, of 23.80 KJ/mole has a normal boiling point at 39.20ºC. Its vapor pressure at 46.280C is: An object was submerged under 75.00 feet of liquid mercury. Mercury's density is 13.534 g/cm3. Earth's gravity is 9.82 meter/sec2. One meter is 1.0936 yards. The hydrostatic pressure exerted on this object is:

Q: The heat of fusion of chloroform (CHCl3) at its normal melting point of -63°C is 9.2 kJ/mol, while…

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Q: How much heat is released when 75.0 g of steam at 100.0°C is cooled to ice at -15.0°C? The enthalpy…

A: The Answer to the following question is-

Q: how much heat is needed to convert 866g of ice at -10C to liquid H2o at 25C.( the specific heats of…

A: In the process of heating the ice, the following steps will take place 1) Heating of ice from -10.0…

Q: Naphthalene is the main ingredient in mothballs and gives mothballs their characteristic smell.…

A: The relation between enthalpy of sublimation, enthalpy of fusion and enthalpy of vaporization is…

Q: 50.0 grams of ethanol are heated from -120.°C to 25.0°C how many joules were required? Ethanol heat…

A: Given : Mass of ethanol = 50.0 g Initial temperature of ethanol = -120 oC And final temperature of…

Q: A sample of C₃H₄Br₂ has a normal boiling temperature of 131.5 °C. The enthalpy of vaporization for…

A:

Q: How much energy is needed to boil 45.0g of water at its boiling point? Water's heat of vaporization…

A: Given: Mass of water = 45.0 g. And heat of vaporization of water = 40.65 KJ/mol.

Q: The specific heat of ice is 2.100 kJ/kg °C, the heat of fusion for ice at 0°C is 333.7 kJ/kg, the…

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Q: Use the data in the table below to calculate the heat of vaporization (AHap) in kJ/mol of pinene.…

A:

Q: Calculate the enthalpy change (in kJ) associated with the conversion of 25.0 grams of ice at -4.00…

A: Given: ∆Hvap=40.67 kJ/mol∆Hfus=6.01 kJ/molmass of ice=25.0 gcice=2.09 J/g.Kcwater=4.18…

Q: Liquid water has a specific heat capacity of 4.184 J/g∘C and an enthalpy of vaporization of 43.9…

A: Since the water needs to be warmed before boiling at 100 ∘C Hence the heat required in warming…

Q: Calculate the enthalpy of vaporization of a liquid that has a vapor pressure of 144.589 mmHg at…

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

Q: calculate the quantity of energy in kj required to change 73.92 grams of liquid water at 38.8…

A: The liquid water is heated to raise the temperature from 38.8 to 100 degree Celsius. Then conversion…

Q: A sample of C₃H₄Br₂ has a normal boiling temperature of 131.5 °C. The enthalpy of vaporization for…

A: The heat required to change the temperature form T1= 97.5 °C…

Q: The heat of vaporization (Hvap) of liquid ethanol, (C2H5OH(l)) at 250C is 42.6 kJ/mol. Calculate the…

A: Interpretation -  To calculate the ΔS for liquid ethanol at 25oC , when heat of vaporization (Hvap)…

Q: Consider 500 g of ice at -55 oC to which 1600 kJ of heat was added in a controlled way with no heat…

A: Given: Mass of ice = 500 g. Amount of heat added = 1600 KJ = 1600000 J And initial temperature of…

Q: A student is asked to calculate the amount of heat involved in changing 10.0 g of liquid bromine at…

A:

Q: The heat of fusion of cobalt at its normal melting point of 1495°C is 15.5 kJ/mol, while its heat of…

A: #(a): Given the heat of fusion of Co at its melting point, ∆Hfusion = 15.5 kJ/mol heat of…

Q: Consider 500 g of ice at -55 °C to which 1600 kJ of heat was added in a controlled way with no heat…

A:

Q: A sample of C₃H₄Br₂ has a normal boiling temperature of 131.5 °C. The enthalpy of vaporization for…

A: At a pressure of 540 mm Hg, the boiling temperature in oC of C₃H₄Br₂ is;…

Q: the enthalpy of vaporization for water is 40.67 kj/mol and the enthalpy of fusion for water is 6.01…

A: Introduction: Enthalpy of vaporization: The heat required by a liquid to transform into its gaseous…

Q: A 21.3-g sample of ice at -14.6°C is mixed with 118.4 g of water at 80.0°C. Calculate the final…

A: Given: m1=mass of ice=21.3 gm2=mass of water=118.4 gT1=initial temperature=-14.6oCT2=final…

Q: The normal boiling point of ammonia is –33.34°C, and its enthalpy of vaporization is 23.35 kJ/mol.…

A: From the Clausius-Clapeyron equation: T1: Normal boiling point of ammonia (-33.34 + 273 = 239.66…

Q: A hot copper ball (200.0 °C) weighing 300.0 g is put into a thermally insulated container holding…

A: As a thermally insulated container is used , no heat will be lost out  q lost, copper = q gained,…

Q: A chemical, C2H5OH (l), is used to disinfect the skin prior to an injection. If a 2.00 g sample of…

A: Given,  The mass of ethanol ( C2H5OH) = 2.00 g.  The molar enthalpy of vaporization of ethanol =…

Q: How much heat (in kJ) is required to warm 13.0 g of ice, initially at -15.0 ° C, to steam at 109.0 °…

A:

Q: How much heat (in kJ) is required to warm 10.0 g of ice, initially at -13.0 °C, to steam at 113.0…

A: Given : Mass of water = 10.0 g Initial temperature of water (in solid form of ice) = -13.0 oC And…

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: The normal boiling point of mercury (Hg) is 356.7 °C. What is the vapor pressure of mercury at 326.0…

A: Hi, as you have posted multiple questions and have not mentioned which question you want us to solve…

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: 13. How much heat in kJ is needed to warm 31.6 g of ice from 10 °C to steam at 175 °C. The heat…

A: Mass of ice = 31.6 g  Molar mass of ice = 18.00 g.mol-  Delta Hfusion = 6.02 × 103 J.mol-  Delta…

Q: kJ and its normal boiling point is 111. °C. Calculate the vapor pressure of Xat -4. °C. The enthalpy…

A: We have enthalpy of vaporization as 17 KJ/mol. Boiling point as 111°C, we have to calculate the…

Q: The specific heat capacity of liquid ammonia is 4700J/Kg.K and its latent heat of vaporization is…

A:

Q: A sample of C₃H₄Br₂ has a normal boiling temperature of 131.5 °C. The enthalpy of vaporization for…

A: Given:Boiling point  of C3 H4Br2 =131.5°C∆Hvap =35.4 KJ/molTo determine :- Boiling Temperature of C3…

Q: The enthalpy change in water for converting 1 mol of ice at -50 degrees Celsius to water and 80…

A: First the ice at -500C is converted to melting point. The mass of ice is also calculated as follows,

Q: How much heat energy is required to convert 48.1 g of solid ethanol at -114.5 °C to gasesous ethanol…

A: Weight of ethanol = 48.1g Molecular weight of ethanol =  46g/mol Melting point of ethanol = -114.50C…

Q: Ethanol has a normal boiling point of 78.4 and a heat of vaporization of 38.56kJ/mol. at what…

A: Normal boiling point of Ethanol, T1 = 78.4 °C = (78.4 + 273.15) K…

Q: When 2 g of solid A, at its melting point of 34.0 °C, was added to 62.7 g of liquid A at 51.2 °C,…

A:

Q: A sample of C₃H₄Br₂ has a normal boiling temperature of 131.5 °C. The enthalpy of vaporization for…

A: Heat energy required (Q) = mC∆T m= mass of sample C= specific heat ∆T= Temperature difference

Q: The heat of fusion of heptane (C7H16) at its normal melting point of -91°C is 14.0 kJ/mol, while its…

A: (a) Solution - According to the question - Given -  DHfus = 14.0 kj/mol DHvap = 31.9 kj/mol Formulas…

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: 4. The vapor pressure of ethanol is 400 mmHg at 63.5 °C. Its molar heat of vaporization is 41.7…

A:

Q: The heats of vaporization and fusion of water are 2490 J gl and 33.5 J gl at 0°C. The vapor pressure…

A: The enthalpy of sublimation of a substance is the sum of the enthalpies of fusion and vaporization.…

Q: A. What is the temperature of fusion, T(fusion) of the substance? B. What is the temperature of…

A: (A) At the temperature of fusion, the solid gets converted to liquid (melting point). From the…

Q: The specific heats of ice, water, and steam are 2.09 J/g-K, 4.18 J/g-K, and 1.84 J/g-K,…

A: Enthalpy of raising the temperature of water to boil at 1000C Mass= 18 grams Heat capacity of water=…

Q: The vapor pressure of liquid SO, is 281.1 mmHg at a temperature of 242.0 K. The enthalpy of…

A: Given: ∆Hvap= 24.9 kJ/mol T1= 242.0 K T2= 250.0 K P1= 281.1 mmHg P2= ?

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

A:

Q: What mass of steam at 100°C must be mixed with 321 g of ice at its melting point, in a thermally…

A: The problem is solved by the concept of state change of water.

Q: A sample of C₃H₄Br₂ has a normal boiling temperature of 131.5 °C. The enthalpy of vaporization for…

A:

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…

Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.