The AHfs of zinc is 7.068 kl-mol, and its AS, is 10.20 J-mol-K. What is the melting point of zinc?

Q: In Breckenridge, Colorado, the typical atmospheric pressure is 520. torr. What is the boiling point…

A: Given, Pressure (P2) = 520 torr, ∆Hvap= 40.7 kJ/mol P1 = 760 torr T1 = 373 K T2 = ? R = 0.008314…

Q: Liquid butane is used in cigarette lighters. The boiling point of butane at 1 atm pressure is -1.0…

A: We have to predict the pressure at different temperature.

Q: The heat of vaporization AH, of methanol (CH;OH) is 35.3 kJ/mol. Calculate th

A: If   vapourisation of methanol       CH3OH(l)     ⇔  CH3OH(g)    △Hv = 35.3 KJ/mol     then…

Q: The heat of vaporization for benzaldehyde is 48.8 kJ/mol, and its normal boiling point is 451.0 K.…

A: Interpretation: The heat of vaporization for benzaldehyde is 48.8 kJ/mol, and its normal boiling…

Q: Given that the normal boiling point of CH3COCH3 is 56 °C, which of the following statements about…

A: Solutions Hence option (B) is correct answer The entropy of the surroundings increases

Q: Which type of intermolecular force accounts for each ofthese differences? (a) CH3OH boils at 65 °C;…

A: (a)The intermolecular forces that accounts for the difference in boiling points of CH3OH and CH3SH…

Q: Vhat specifically is happening at points B>C? What specifically is happening at points D→E? What…

A: Phase change is  a change from one state (solid or liquid or gas) to another without a change in…

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

A:

Q: The specific heat capacity of silver is 0,235J/g-K. Its melting point is 962°C, and its heat of…

A: Since the silver is initially at 25 oC. Hence to melt the silver from solid to liquid state, first…

Q: The AHvap of a certain compound is 21.13 kJ - mol and its AS vap is 59.39 J mol.K-. What is the…

A: The solution is as follows :

Q: Is vaporization an exothermic or endothermic process? Based on Le Châtelier’s principle?

A: EXOTHERMIC PROCESS The process in which energy is released from the system to the surrounding in the…

Q: For benzene, the AH° of vaporization is 30.72 kJ/mol and the AS° of vaporization is 86.97 J/mol K.…

A: The entropy change during the vaporization of a liquid is known as entropy of vaporization. The…

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: For 2-methylbutane, the ∆H° of vaporization is 25.22 kJ/mol and the ∆S° of vaporization is 84.48…

A: Entropy change when liquid state changes to gaseous state can be calculated by the following…

Q: iClicker Question: Based on the phase diagram for substance Z below, which of the following…

A: A. At point 4, there is no liquid phase. Hence, Z cannot be liquefied at point 4. The statement is…

Q: Methane (CH₄ ) has a boiling point of 164°C at 1 atm anda vapor pressure of 42.8 atm at…

A:

Q: Given that the normal boiling point of CH3COCH3 is 56 °C, which of the following statements about he…

A: The normal boiling point of CH3COCH3 is 56oC and the process is given as : CH3COCH3g,74oC,1 atm…

Q: Liquid butane is used in cigarette lighters. The boiling point of butane at 1 atm pressure is -1.0…

A:

Q: The normal boiling point of unobtainium is 345 C.  a. Is the condensation of unobtainium endo or exo…

A: Since the boiling point of unobtainium is 345 °C.

Q: . Arrange the following in the order of increasing boiling point: CO,, KCI, CH,I, CH,OH. Identify…

A: Boiling point:The temperature at which the vapor pressure of a liquid becomes equal to the…

Q: Which substance will have the highest boiling point Oa) CHBry OD) CHCH, Oa CHF

A: Boiling point is the temperature at which liquid converts into its vapor state.

Q: If 42.0 kJ of heat is added to a 32.0-g sample of liquid methaneunder 1 atm of pressure at a…

A: Since the heat added is very high (42000 J). And since the temperature of the methane was already…

Q: For propane, the ∆H° of vaporization is 22.9 kJ/mol and the ∆S° of vaporization is 99.0 J/mol･K. At…

A: Concept:  Boiling point: It is a temperature on which the gass phase and liquid phase are in…

Q: Caiculate the normal boiling point of a substance that has a vapor pressure of 125 torr at 25.0 °C…

A: "Since, you have posted multiple questions, we will solve only first question for you according to…

Q: In Boise, Idaho, the typical atmospheric pressure is 685 torr. What is the boiling point of water…

A: The given information is: The typical atmospheric pressure = 685 torr ΔHvap for the reaction = 40.7…

Q: The AHvap of a certain compound is 28.24 kJ · mol¬ and its ASyap is 68.08 J · mol¬ · K-!. What is…

A:

Q: The study of a crystalline solid, such as sodium chloride for example, involves the lattice enthalpy…

A: To solve this problem we will use the given data for the formation of NaCl .

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

A:

Q: At three different temperatures, T1, T2, and T3, the moleculesin a liquid crystal align in these…

A: (a) In the given figure, At temperature T1, represents the smectic A liquid crystalline phase. At…

Q: The ΔHvap of a certain compound is 22.52 kJ·mol-1 and its ΔSvap is 56.75 J·mol-1·K -1. What is the…

A: Enthalpy is the property of the thermodynamic system which defines the sum of the system’s internal…

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

A:

Q: The vapor pressure, P, of bromine at several temperatures, T, is given in the table. T(K) P(Torr)…

A: The correlation of different pressures, different temperatures and heat of vaporization is explained…

Q: For bromine, AH°vap = 30.91 kJ/mol and A S°vap = 93.23 J/mol K at 25°C. What is the normal boiling…

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: 3) You have 431.3 g of ice at -3 °C, a. How much energy will it take to raise your ice's temperature…

A:

Q: 7. How many calories of energy are released to the surroundings when 275g of mercury freezes? The…

A:

Q: Which of the following is expected to have the lowest surface tension in its liquid state? H нн H…

A: First of all, surface tension is lower or higher it's depends on the strength of intermolecular…

Q: If 42.0 kJ of heat is added to a 32.0-g sample of liquid methaneunder 1 atm of pressure at a…

A: Introduction: Specific heat equation: The specific heat is the quantity of heat per unit mass…

Q: Which of the following is expected to have the lowest surface tension in its liquid state? H H H.…

A: Surface tension of a liquid depend upon intermolecular force of attraction between molecules of…

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: The triple point of red phosphorus occurs at 43 atm and 590 °C. If a solid sample of red phosphorus…

A: A phase diagram is graphical representation of physical states of a substance under different…

Q: Which diagram corresponds to pure methanol (CH3OH)? (The normal boiling point of methanol is…

A: Methanol exist in liquid form at normal temperature. The distance between the methanol molecule is…

Q: Ammonia has a normal (1.00atm) boiling point of -33.3*C. Under a pressure of 2.11 atm, what is…

A: Vapor pressure at normal boiling point (P1) = 1 atm Normal boiling point (T1) = - 33.3 oC = (273 -…

Q: Steam at 100oC was passed into a flask containing 276.87g of water at 21oC, where steam condensed.…

A:

Q: tial oil fol in cloves, eugenol, can be isolated by steam easurable vapor pressure at 100 °C even…

A: Solution- .Given partial vap pressure of Eugenol = 4 mm HgHg partial vap pressure of Eugenol = 4 mm…

Q: The normal boiling point of Br2(l) is 58.8 °C, and itsmolar enthalpy of vaporization is ΔHvap = 29.6…

A:

Q: How much energy is required to vaporize 188g of butane at its boiling point if it's Hvap is…

A: Number of moles of butane is calculated as follows,

Q: The AHvap of a certain compound is 42.63 kJ mol- and its AS, is 72.79 J mol-1. K-. What is the…

A: Given Enthalpy of Vaporization (∆Hvap) = 42.63 KJ mol-1  OR 42630 Joule mol-1 Enthalpy of Entropy…

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: As a substance is subjected to pressure and/or temperature changes, it may undergo condensation,…

A:

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.