Q. The vapor pressure of liquid benzene is given by ln p* = 15 – 1280/T, and that of vapor benzene is given by ln p* = 23 – 2560/T, what is the boiling point of benzene?

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Q. The vapor pressure of a compound in liquid phase is given by ln p* = 21 – 2800/T, and in solid phase it is given by ln p* = 28 – 3500/T, what is the sublimation temperature of the compound?

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Q. For CaOCl₂ , the rate of evaporation is given by W = 325p^0.5M/T^1.5 g/liter, where T is in K, p in mm Hg, and M is molecular weight, if its pressure is given by ln p* = 25 – 2700/T, what is the evaporation rate at T = 150 K?

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Q. What is the vapor pressure of ammonia at 305 K, if it is given that the vapor pressure of ammonia at 315 K is 5 mm Hg and at 325 K it is 6 mm Hg?

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Q. The pressure of a compound at 200 K is 10 mm Hg and at 400 K it is 50 mm Hg, what is the pressure at T = 250 K?

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Q. A vessel contains air and vapor H₂O, if the partial pressure of vapor H₂O is 4 atm and pressure of air is 1 atm, what is the fraction of vapor H₂O in vessel?

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Q. A container has vapor H₂O with partial pressure 9 atm, what is fraction of air in the vessel?

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Q. A system has partial pressure 500 mm Hg and the saturated water vapor has partial pressure 25 mm Hg, what is the fraction of water vapor in the system?

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Q. The partial pressure of a system at 49°C is 125 mm Hg and saturated ammonia vapor has partial pressure 20 mm Hg at 49°C, what is the fraction of ammonia vapor in the system?

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Q. What is the dew point of water at standard conditions?

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Q. CH₄ is burnt with 100% excess O₂ at atmospheric pressure, if CH₄ conversion is 100%, what is the pressure at dew point?

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Q. Ethane is burnt with 20% excess O₂ at 2 atm, conversion rate of ethane is 50%, what is the pressure at due point?

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Q. Ethanol is burnt with required amount of O₂ at atmospheric pressure, the conversion of ethanol is 100%, what is the pressure at due point?

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Q. 100 KPa of water vapor at 27°C is saturated with air in a system, what is the mole fraction of air?

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Q. 10 KPa of water vapor at 27°C is saturated with air in a system, what is the mole fraction of air?

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Q. Which of the following defines condensation?

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Q. Which of the following is not a way of condensation of vapor?

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Q. Condensation starts at which point?

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Q. If the fraction of water vapor at 27°C and 5 atm is 0.5, then what is the fraction of water vapor at 27°C and 1 atm?

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Q. What is the fraction of water vapor at 27°C and 1 atm, if the fraction of water vapor at 127°C and 1 atm is 0.8?

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