Rationalize the difference in boiling points in each pair:   a.  CHCl3 (61 degrees C) and CHBr3 (150 degrees C) b.  Br2 (59 degrees C) and ICl (97 degrees C)

Q: found in the liquid phase:   a. 184.3°C b. 0.01 atm c. 170°C d. 110°C e. 113.7°C

A: In the graph, there is the triple point at which all the three phases coexist, solid, liquid, and…

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: Choose

A: Boiling point is the temperature that is required to break the bond of molecule

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: Which substance has the lowest vapor pressure at 25C ?   a. H2S   b. O2   c. H2O   d. CO2

A: Vapour pressure may be defined as:-…

Q: What amount of heat, in kJ, is required to vaporize 115.00 g of ethanol (C2HSOH)? (AHvap = 43.3…

A:

Q: 12.41 Which substance has the higher boiling point? Explain. (a) CH,CH,OH or CH;CH,CH, (c) H,S or…

A: The boiling point is dependent upon intermolecular powers of fascination. The intermolecular powers…

Q: The normal boiling point of mercury (Hg) is 356.7 °C. What is the vapor pressure of mercury at 340.5…

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: 4) The table below contains thermodynamic values for water (H20) and for methane (CHA). Water…

A: The enthalpy of fusion (∆Hf) is termed as the quantity of energy that must be supplied to convert…

Q: Which of the following pairs of substances has the higher vapor pressure at 298 K given first? A)…

A:

Q: 27. Arrange the following compounds in order of increasing boiling point. Explain your answer in…

A: Order of increasing boiling point :                                                       d < a…

Q: The normal boiling point of mercury (Hg) is 356.7 °C. At what temperature (in °C) would the vapor…

A: Boiling point of Hg (Tb) = 356.7°C Vapor pressure of Hg (P2)= 0.4050atm ΔHvap = 58.51KJ/mol We have…

Q: 5. Consider the phase diagram of carbon dioxide. What is the pressure at the triple point? 73.0 5.11…

A:

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: 11.) A) Which would have a greater melting point, (a) or (b)? Explain. B) Which would have a greater…

A: The melting point is defined as the temperature which is required to melt solid substances. It…

Q: Ammonia (NH3) with a boiling point of -33.340C under 1.0 atm pressure a) How many atm pressure is…

A: Given,  Boiling point of ammonia T1= -33.4°C=273+(-33.4)=239 .66 K PressureP1= 1 atm ∆H°=23.5 Kj/mol

Q: What is represented by B on the phase diagram? A) solid B) liquid A C) gas D) cannot determine…

A: Matter exists in three phases that is solid, liquid and gas. A substance keep changing its state…

Q: The boiling point of acetic acid is usually stated to be 118°C. Is it possible to have acetic acid…

A: The liquid state of any substance is changed to its vapor state, when the atmospheric pressure…

Q: 1.1 Bromine (Br2) has a normal melting point of – 7.2°C and a normal boiling point of 59°C.The…

A: The normal melting point of bromine = – 7.2°C  The normal boiling point of bromine = 59°C The triple…

Q: The normal boiling point of mercury (Hg) is 356.7 °C. At what temperature (in °C) would the vapor…

A:

Q: The normal boiling point of a liquid is 282 °C. At what temperature (in °C) would the vapor pressure…

A: ∆Hvap = 28.5 kJ/mol Boiling point = 282 °C  or  Vapor pressure = 0.280 atm

Q: b) Consider the following organic compounds. CH3(CH2);NH2 , (CH3);CNH2 , (CH3)2NCH2CH3 Arrange the…

A:

Q: (a) Place the following substances in order of increasingvolatility: CH4, CBr4, CH2Cl2, CH3Cl,…

A: The volatility of the compound depend upon the molar mass of the molecule and volatility increases…

Q: 9. Rationalize the difference in boiling points for each of the following pairs of substances: а.…

A: Boiling is the process in which the intermolecular forces of liquid are overcome by the external…

Q: How much heat is required to vaporize 54.9g of acetone at its boiling point? The heat of…

A:

Q: 1) the approximate melting point for this substance XY at 20atm is……? 2) What will happen to a…

A: A question based on phase diagram that is to be accomplished.

Q: 7.1 A normal boiling point of Cd(l) is 1038K. At this temperature △Hvap is 23,900(J/mol). (a) In 2…

A:

Q: What amount of heat, in kJ, is required to vaporize 172.90 g of ethanol (C2H,OH)? (AHvap = 43.3…

A: Molar mass of Ethanol = 46.07g/mol

Q: How much heat energy is required to boil 78.8 g of ammonia, NH, ? The molar heat of vaporization of…

A: We will first calculate moles of NH3 then find heat required to boil it.

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 normal boiling point of mercury (Hg) is 356.7 °C. What is the vapor pressure of mercury at 341…

A: Normal boiling point of Mercury = 356.7oC Final temperature of mercury      = 341oC Enthalpy of…

Q: The normal boiling point of a substance is 433 °C. Calculate the pressure at which this substance…

A: this solution is done using the clausius-clapeyron equation .

Q: 12.41 Which substance has the higher boiling point? Explain. (a) CH,CH,OH or CH,CH,CH, (c) H,S or…

A: The properties like boiling and melting point depend upon the type strength of intermolecular force…

Q: how much energy is required to vaporize 48.7 g of dichloromethane at its boiling point. (31.6…

A: We need to find the energy required to vaporize.  Mass = 48.7 g Boiling point = 31.6 kJ/mol

Q: List the following substances in order of increasing normal boiling points, Tb, and explain your…

A: The boiling point of a  molecule is determined by the intermolecular forces present between them.…

Q: The normal boiling point of a liquid is 282 °C. At what temperature (in °C) would the vapor pressure…

A:

Q: What amount of heat, in kJ, is required to vaporize 198.00 g of ethanol (C2H5OH)? (AHvap = 43.3…

A: Interpretation: The amount of heat required to vaporize 198 g ethanol, is to be determined.

Q: Why are the boiling points different and what is the trend?

A: Boiling point is defined as the temperature at which a solid starts melting and becomes liquid.   it…

Q: The normal boiling point of mercury (Hg) is 356.7 °C. What is the vapor pressure of mercury at 335…

A: The relation of the vapor pressure of a substance between any two states P1 and P2 at the operating…

Q: 12. Which of the following molecules will have the highest molar enthalpy of vaporization at normal…

A: In this question, we will see that which molecule have highest molar enthalpy of vaporization at…

Q: Determine the normal boiling point of a substance whose vapor pressure is 55.1 mm Hg at 35°C and has…

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

Q: 1241 Which substance has the higher boiling point? Explain. (a) CH,CH,OH or CH;CH,CH, (c) H,S or…

A: Interpretation: Which substance has the higher boiling point is to be determined and explained.

Q: The normal boiling point of mercury (Hg) is 356.7 °C. What is the vapor pressure of mercury at 327.5…

A: In this question, we want to determine the vapor Pressure of mercury at 327.5°C in atm unit.  You…

Q: List the following substances in order of increasing normal boiling points, Tb, and explain your…

A: The  increasing order of normal boiling points:   He   <  Ar  <  SO2   <  HF  <  CaF2…