At 25.0°C, the vapor pressure of butane is 2.30 atm. What is the pressure in the container at 130.0°C? (ΔH° vap = 24.3 kJ/mol.)

Q: For a compound the ΔHofus is 11.7 kJ/mol and the ΔSofus is 38.9 J/mol∙K.  What is the melting point…

A: Given that ,  Standard enthalpy of fusion, ΔHofus = 11.7 kJ/mol = 11.7×103 J/mol  Standard entropy…

Q: Which of the foHowing would be expected to have the highest vapor pressure at room temperature? O…

A: To Find: The substance with highest vapor pressure at room temperature.

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: enthalpy of vaporization for water is 44.0kJ/mol and the vapor pressure of water at 56oC is…

A: The Clausius – Clapeyron equation is shown below: Where; P1 is vapor pressure at temperature T1 P2…

Q: The Δ?vap of a certain compound is 24.93 kJ · mol−1 and its Δ?vap is 70.25 J · mol−1· K−1. What is…

A:

Q: 2. Pentane C5H12 boils at 36°C at 1 atmosphere pressure. What is the molar heat of vaporization…

A: given, P1 = 1 atm , T1 = ( 273 + 36)K = 309K P2 = 505 torr = (505 x 0.00132) atm = 0.67 atm , T2…

Q: Suppose that 1.15 g of rubbing alcohol (C3H8O) evaporates from a 65.0-g aluminum block. If the…

A: The given data contains, mass of block = 65.0 g. Temperature ( initial ) = 25°C

Q: What phase of water exist at 100° C and 5 atm? At 200°C and 1 atm?

A: The  phase diagram is a diagram explaining the coexistence of different phases of any given…

Q: Does SF6 (boiling point = 16°C at 1 atm) behave more ideally at 1508C or at 208C? Explain.

A: Gases are the species whose molecules are connected to each other by Vander Waal forces.

Q: Liquid hexane (bp = 69°C) is placed in a closed container at room temperature. At first, the…

A: In closed isolated container several processes occur that is exist an equilibrium between liquid and…

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: Carbon dioxide is liberated by the reaction of aqueous hydrochloric acid with calcium carbonate:…

A: The ideal gas equation is as follows,                               Where, n is the amount of gas…

Q: 10.Given the following substances and their normal boiling points, in °C: (A = 43.8 °C, B = 93.7 °C,…

A: Boiling point and vapor pressure has anti-proportional relation. So Boiling point ∝ 1/(vapor…

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: In kJ/mol, what is the enthalpy kf vaporization, Hvap, for a substance that has a vapor pressure or…

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

Q: 12. Patients with a high body temperature are often given "alcohol baths". The heat of vaporization…

A: Heat of vaporization means the heat required to covert a fixed amount of liquid to gas.

Q: Liquid hexane (bp =69°C) is placed in a closed containerat room temperature. At first, the pressure…

A: Distribution of chemical species between the vapor phase and liquid phase is known as vapor-liquid…

Q: The vapor pressure of methanol (CH₃OH) at 25.0°C is 127.2 torr. A 4.35-g sample of methanol is…

A: Firstly find out how much methanol would vaporise to attain saturation vapour pressure by using…

Q: NH3, NHF2, NF3  which has the highest enthalpy of vaporization? Which has the highest vapor…

A:

Q: Suppose that 1.10 g of rubbing alcohol (C3H8O) evaporates from a 67.0 g aluminum block. If the…

A: Mass of alcohol = 1.10g Moles of alcohol = 1.10g/60g/mol= 0.0183 mol Heat of vaporisation =…

Q: A liquid has a ΔH°vapof 32.7 kJ/mol and a boiling point of 124°C at 1 atm. What is its vapor…

A: Given: Enthalpy of vaporization (ΔHvap) = 32.7 kJ/mol. Vapor pressure (P1) = 1 atm (normal boiling…

Q: Use the phase diagram for methane, CH4, shown in Figure11.30 to answer the following questions. (a)…

A: Since you have posted a question with multiple sub-parts, we will solve first three subpartsfor you.…

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

A:

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

A:

Q: A 4.7-L sealed bottle containing 0.33 g of liquid ethanol,C₂H₆O, is placed in a refrigerator and…

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: 2) The vapor pressure of ethanol is 100 mmHg at 34.9°C. What is its vapor pressure at 63.5°C? (AHvap…

A: For ethanol  vapor pressure for ethanol  P1 = 100 mg  temperature T1 = 34.9 °C = 34.9 + 273.15 =…

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

A: Given, ∆H°vap=30.91 kJ/mol∆S°vap = 93.23 J/mol K

Q: (Q43) The normal boiling point of acetone is 56.1°C and its AHvap at its boiling point is 29.1…

A: Given: Normal boiling point of acetone = 56.1 oC ΔHvap of acetone = 29.1 KJ/mol = 29100 J/mol.…

Q: What amount of heat (in kJ) is required to convert 10.7 g of an unknown liquid (MM = 83.21 g/mol) at…

A:

Q: Which of the following pure substances has the highest normal boiling point? O a. KF Ob.H 20 Oc. CSF…

A: The boiling point has depends upon ionic character so CaF2 has highest normal boiling point.

Q: For each pair, predict which one will have the higher value for vapor pressure when it is in the…

A: We know that, vapour pressure of the compound is Inversly proportional to boiling point.  That…

Q: 3. The vapor pressure of ethanol is 100 mmHg at 34.9°C. What is the vapor pressure at 63.5°C? (AHvap…

A:

Q: A liquid has a ΔH°(vaporization) of 33.3 kJ/mol and a boiling point of 125°C at 1 atm. What is its…

A: Vapor pressure is a thermodynamic equilibrium with its concentration at temperature is a closed…

Q: 1. Which of the following has dispersion forces as its only intermolecular force? а. СCl4 c. CH3CI…

A:

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

A:

Q: 9. Complete the following table : F2 HF CaF2 SF4 Substance b.R. -188 °C b.p. +20 °C m.p. +1418 °C…

A: Intermolecular forces are the forces that exist between the molecules. These are ionic interactions,…

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: What is the heat of vaporization in kJ/mol?

A: P1 = 0.217atm P2 = 0.851atm T1 =-54.3°C or  218.85 K T2 = 1.79°C or  274.94 K

Q: The normal boiling point of mercury (Hg) is 356.7 °C. What is the vapor pressure of mercury at 338.0…

A: We have given that Normal boiling point of Mercury = T1 =  356.7 °C = 629.7K  at pressure of  = P1 =…

Q: 2) You are given the following data. Which of the liquids would you expect to have the highest vapor…

A: Boiling point :- The temperature at which the vapor pressure of anyliquid is equal to atmospheric…

Q: What is the vapor pressure of ethanol at 55 degrees C ? The boiling point is 78.4 degress C and the…

A: Given:Enthalpy of vaporization (ΔH) = 42.3 kJ/mol.Vapor pressure (P1) = 760 mmHg (normal boiling…

Q: Enter your answer in the provided box. The vapor pressure of ethanol is 1.00 x 10 mmHg at 34.90°C.…

A: Given data: P1 = 1.00×102mmHg=100mm Hg T1 = 34.900C= 273.15K+34.90=308.05K T2 = 57.780C=…

Q: The vapor pressure of ethanol (C2H5OH) at 19 °C is 40.0torr. A 1.00-g sample of ethanol is placed in…

A: Pressure = 40.0 torr Mass of sample of ethanol = 1.00 g Volume of container = 2.00 L Temperature =…

Q: Use the phase diagram for methane, CH4, shown in Figure11.30 to answer the following questions. (a)…

A: (a) At critical point two phase of a substance initially becomes indistinguishable. In the diagram…

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: What is the vapor pressure of ethanol in (mmHg) at 62.5°C if it's vapor pressure is 400.0 mmHq at…

A: The Clausius–Clapeyron  deremines  the relation between temperature and vapor pressure, It helps us…

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

A: Given; Initial pressure (P1) = 1 atm (at normal boiling point) Final pressure (P2) = 0.2950 atm…

Q: At room temperature, F2 and Cl2 are gases, Br2 is a liquid, and I2 is solid. This is because of…

A:

Q: 4. Fill up the missing words in this statement. The boiling point of a non-polar substance is…

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

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.