Suggest an explanation for the observation that the heat of fusion of a substance is always smaller than its heat of vaporization.

Q: What does not correspond to the molar heat of fusion?

A: According to the first law of thermodynamics, the total heat change of a system at constant pressure…

Q: A substance with molar mass = 115.5 g/mol), has a boiling point of 103°C. Calculate how much energy…

A: A multiple choice question based on heat energy exchange, which is to be accomplished.

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

A:

Q: What is the expected value for the heat of sublimation of acetic acid if its heat of fusion is 10.8…

A: Given that,  Heat of fusion of acetic acid (∆Hfus ) = 10.8KJ/mol Heat of vaporisation of acetic acid…

Q: Why are heats of vaporization always larger than heats of fusion?

A: Solution- Fusion temperature i mean heat of fusion is the energy required for one gram of solid…

Q: Why is the boiling point of a liquid dependant on the atmospheric pressure?

A: Boiling is the process where liquid molecules transfer to vapor at the Boiling point.

Q: How many grams of ice at 0°C can be melted by the condensation of 12.39 g of steam at 100°C,…

A:

Q: how much heat you need to add to melt a block of 15.0 g of ice at 0 C? the heat of fusion of ice is…

A: Molar heat of fusion or enthalpy of fusion is defined as the amount of heat required to convert one…

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: What amount of heat (in kJ) is required to convert 19.3 g of an unknown liquid (MM = 67.44 g/mol) at…

A: Here , heat is used in three steps , 1)  in rising of temperature of liquid till boiling point. 2)…

Q: What is the heat of fusion and why is it important?

A: Fusion is the process of conversion of a material from solid state to liquid state such as melting…

Q: The following data shows the water vapor pressures of water at different temperatures. Determine the…

A: The heat of vaporization is the the total extent of heat needed to turn a peculiar amount of liquid…

Q: Why is it important that the heat capacity, latent heat of fusion and latent heat of vaporization of…

A: Heat capacity is the anount of heat required to  increase a particular amount of the substance.…

Q: How much heat energy is required to melt 126.0 g of HBr? The molar heat of fusion of HBr is 2.41…

A: Given   mass of HBr = 126 gram  Molar Heat of Fusion    = 2.41 KJ/ mol  Energy required to melt 126…

Q: The enthalpy of vaporization of water is larger than its enthalpy of fusion. Explain why.

A: Given:It is given that,"The enthalpy of vaporization of water is larger than its enthalpy of…

Q: What is the total heat required to convert 5 moles of ice at 0°C to liquid water at 0°C given the…

A: heat capacity during phase transformation  Q=  n ×L

Q: How much energy is required to vaporize 188 g of butane (C 4H 10) at its boiling point, if its ΔH…

A:

Q: When is the boiling point of a liquid equal to its normal boiling point?

A: The boiling point refers to the temperature at which the substance starts to boil when its rate of…

Q: Consider the heating curve provided for 1.00 mole of a substance that begins as a solid at -14.8 °C…

A: Solution From the heating curve, it is clear that the substance is solid at   and the melting point…

Q: What does not correspond to the molar heat of fusion? O AHfus O the heat absorbed by one mole of a…

A:

Q: 7. How does the molar heat of vaporization of a substance compare to its molar heat of condensation?

A: Since you are posted with multiple question. As per the rule, I am answering the first question…

Q: Given that the normal boiling point of CH3CH2CH2CH2NH2 is 77 °C,  which of the following statements…

A: Overall process is:

Q: The heat of fusion of pure silicon is 43.5 kJ/mol. How much energy would be needed to melt a 5.24-g…

A: Mass of silicon= 5.24g MOLAR mass = 28g/mol Mole= mass÷molar mass=  5.24÷28= 0.18mole 1 mole Si…

Q: The heat of vaporization of water is 540 cal/g. How much heat is needed to change 1.75 g of water to…

A: All things are provided in handwritten solution.

Q: How many grams of benzene, C,H,, can be melted with 21.8 kJ of heat energy? The molar heat of fusion…

A: Given data: The heat energy (q)=21.8 kJ. The molar heat of fusion of benzene=9.95 kJ/mol. To find:…

Q: Using your own knowledge of intermolecular forces, predict the state of the substance below. Explain…

A: Ionic compounds are those compounds in which bonds are formed by electron transference between the…

Q: How much heat is required to change 600. g of liquid mercury to gaseous merouty at the boiling?

A: To calculate the heat required to change the liquid mercury to gaseous mercury at its boiling…

Q: How is a molar heat of sublimation related to the molar heats of vaporization and fusion? On what…

A:

Q: Explain the process of dynamic equilibrium. How is dynamic equilibrium related to vapor pressure?

A:

Q: Explain why the enthalpies of vaporization of the following substances increase in the order CH4…

A: Enthalpy of vaporization depends on the strength of inter molecular forces. High inter molecular…

Q: Match each numbered point in the phase diagram for com-pound Q with the correct molecular depiction…

A: The point 1 is present on the solid liquid curve, which is in accordance with the diagram C which…

Q: True or false: the heat of vaporization depends to a small extent on the surrounding temperature.

A: False  The heat of vaporization  is defined as the amount of heat needed to turn 1 g of a liquid…

Q: The heat of fusion of pure silicon is 43.4 kJ/mol. How much energy would be needed to melt a 5.24-g…

A:

Q: Why is molar heat of fusion lower than molar heat of vaporization?

A:

Q: How much heat energy is required to boil 23.0 g of ammonia, NH,? The molar heat of vaporization of…

A: Given data: The mass of ammonia m= 23.0 g. The molar heat of vaporization of ammonia = 23.4 kJ/mol.…

Q: Calculate the heat absorbed when 35.39 g of some substance at 13.16°C is completely melted. The…

A:

Q: How are boiling points affected by intermolecular forces? Why are heats of vaporization always…

A: Hello. Since your question has multiple parts, we will solve the first question for you. If you want…

Q: Why is the heat of fusion (AH) of a substance smaller than its heat of vaporization (AH,ap)? Why is…

A: The heat of fusion is the amount of heat needed for a solid for it to transform into a liquid while…

Q: How many grams of benzene, C,H,, can be melted with 65.4 kJ of heat energy? The molar heat of fusion…

A:

Q: How much energy is required to vaporize 178 g of butane (C 4H 10) at its boiling point, if its ΔH…

A: · m=Mass of Butane C4H10 = 178 g· ∆Hvap=Enthalpy of vaporization = 24.3 kJmol We need to calculate…

Q: Question attached

A: Force per unit area is defined as pressure. The expression for the same is represented as follows:…

Q: Describe what is meant by a dynamic equilibrium in terms of the vapor pressure of a liquid

A: liquid is in dynamic equilibrium with its vapor phase, the rates of evaporation and condensation are…

Q: What feature characterizes the dynamic equilibrium between a liquid and its vapor in a closed…

A: If we have dynamic equilibrium between a liquid and its vapor the rate of evaporation and…

Q: Calculate the amount of heat energy that must be removed from 75.3 g steam at 105 C and 1.00 atm to…

A: Given that:  Mass of steam (m) = 75.3 g Initial temperature = 105°C Specific heat steam (Cs) is 2.00…

Q: Which processes are important for determining the vapor pressure of a liquid? Select all that are…

A: States of a matter Matter can exist in three states: solid, liquid, and gaseous In solid-state…

Q: Pentane C5H12 boils at 360C at 1 atmosphere pressure. What is the molar heat of vaporization in…

A: The molar heat of vaporisation and temperatures and pressures of substance (pentane) related to each…

Q: Why is vaporization endothermic?

A: In vaporisation it requires to overcome the intermolecular force that holds together the liquids,…