The heat of vaporization of boron tribromide is 30.5 kJ/mol, and its normal boiling point is 91°C. What is the vapor pressure of BBr3 at 20.°C? (R = 8.314 J/K • mol).  255 torr 659 torr 66.2 torr 11.5 torr 167 torr

Q: What phase changes will take place when water is subjected to varying pressure at a constant…

A: Concept introduction: Phase diagrams are important graph of pressure verse temperature of substance…

Q: The vapor pressure of ethanol is 100mmHg at 34.9 degrees Celsius. What is it's vapor pressure at…

A: The temperature given in degree Celsius is converted into Kelvin scale.

Q: 3. Water has a vapor pressure of 17.5 torr at 20 °C, at what temperature does water have a vapor…

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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: A liquid has an enthalpy of vaporization of 44.2 kj/mol. At 474 K it has a vapor pressure of 103…

A: Given data,Enthalpy of vaporization=44.2kJ/molInitial pressure (P1)=103mmHgInitial temperature…

Q: The phase diagram of a hypothetical substance is (a) Estimate the normal boiling point and freezing…

A: a.

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

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Q: The heat of vaporization of water is 40,670 J/mol at the normal boiling point, 100°C. The barometric…

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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: The normal boiling point of a certain hydrocarbon is 66°C. Calculate its heat of vaporization given…

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Q: What are the strongest attractive intermolecular forces found in: b. bromine:- а. ice:- С. СаCl2:-…

A: Intermolecular forces are the forces of attraction between the different molecules. There are five…

Q: The normal boiling point of mercury (Hg) is 356.7 °C. What is the vapor pressure of mercury at 344.0…

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Q: The normal melting point of benzene is at 5.5°C, where its density changes from 0.891 g/mL to 0.879…

A: Given datas –  Melting point of benzene  = 5.5°C  density (s)  = 0.891 g/mL density (l)   = 0.879…

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

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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: Which option lists the following substances in order of increasing boiling point, based on our…

A: Different type of noble gases have different physical and chemical properties , which depends on…

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

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Q: The phase diagram of a hypothetical substance is shown below. 1.0F 0.5 ssure (atm)

A: A graphical representation of the physical states of a substance under different conditions of…

Q: The vapor pressure of ethanol, C2, H5, OH, at 50.0°C is 233 mm Hg, and its normal boiling point at 1…

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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 vapor pressure is 54.6 torr at 20 °C and 300.0 torr at 82°C. Calculate its heat of…

A: 23.7 KJ/mol

Q: The vapor pressure of nitric acid is 26.6 mmHg at 10.0 °C and 208 mmHg at 50.0 °C. Using this…

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

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Q: A)   Hydrazine (NH2NH2), hydrogen peroxide (H2O2), and water all have surface tensions much higher…

A: Surface tension of liquid is the tendency of liquid to shrink to a minimum surface area. So, it will…

Q: A sample of the substance in this phase diagram is initially at 175°C and 925 mmHg. Which phase…

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

Q: The normal boiling point of a liquid is 282.0 °C. What is the vapor pressure of this liquid at 226.0…

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Q: At 1.00 atm, water boils at 100oC (373 K). In Denver, Colorado, water boils at about 94oC (367 K).…

A: For all the liquids , when temperature increases there is increase in pressure as well. That…

Q: Phase Diagram. The phase diagram of substance W is shown. a. State the physical state(s) of…

A: The graphical representation of physical state of the substance under the variation of pressure an d…

Q: 1. Consider the phase diagram of substance X and answer the given questions a. Mark the area…

A: The graphical representation of physical states of the substance at different pressure and…

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

A: Given : normal boiling point of liquid = 282 °C Vapour pressure for which temperature is to be found…

Q: The physical properties of water can be explained by:

A: Physical properties can be measured without changing the identity and composition of the substance.…

Q: Calculate the enthalpy of vaporization of nitric acid. If the vapor pressure of nitric acid is 26.6…

A:

Q: Which of the following arrangements is in order of increasing vapor pressure (lowest to highest)? a.…

A: Vapor pressure is pressure caused by evaporation of liquid. Three common factors influence vapor…

Q: The vapor pressure of liquid cobalt is 400 mm Hg at 3.03x10³ K. Assuming that its molar heat of…

A: Given, P1 = 400 mm T1 = 3030 K T2 = 3050 K □H = 450 kJ/mol Using Von't Hoff reaction  ln(P2/P1) =…

Q: The vapor pressure of benzene is expressed by the following formula: 3884 K In(P/ torr)= T +17.63…

A: Given : Atmospheric pressure = 500 torr

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

A: We have to calculate the temperature for given vapour pressure.

Q: Carbon disulfide, CS 2, has a heat of vaporization of 29,200 J/mol.  The normal boiling point* of CS…

A: Clausius-Clapeyron equation shows how pressure and temperature vary with respect to each other that…

Q: If the normal boiling point of a liquid is 82 °C, what is the vapor pressure (in atm) at 50 °C?…

A: If the normal boiling point of a liquid is 82 °C, the vapor pressure (in atm) at 50 °C is to be…

Q: The rate of vaporization increases/decreases with increasing temperature. Explain this phenomenon.…

A: The phenomenon where the molecules goes from its liquid state to the gaseous state is known as…

Q: The vapor pressure of a certain liquid is 39mmHg at a temperature of 10°C. If its heat of…

A: Given :  Initial temperature (T1) = 10°C = 283 K  Vapour pressure at 10°C (P1) = 39 mm Hg  Final…

Q: Which of the following liquid substances has the highest vapor pressure at its normal boiling point?…

A: Vapour pressure of a liquid is defined as the tendency of phase change of liquid substance to…

Q: Use the phase diagram of Substance X below to find the pressure at which the boiling point of X is…

A: The diagram which represents the thermodynamic conditions of a substance (X) at a different…

Q: Refer to the following phase diagram (not to scale!) for hydrogen: 12.8 1.00 P atm 0.071- 13.9 14.0…

A: Answer:- This question is answered by using the simple concept of phase change using the phase…

Q: The vapor pressure of mercury at 298 K is 0.00270 mmHg. If the normal boiling point of mercury is…

A: Use Clausius Clapeyron equation to solve this,ln P1P2 = ΔHvapR1T2 - 1T1 Given that,T1 = 298 K P1 =…

Q: Consider the phase diagram of a substance shown below with a triple point occuring at -25 °C and 230…

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Q: The normal boiling point of acetic acid, HCH3O2, is 117.9'C, and its molar enthalpy of vaporization…

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