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3. Calculate the approximate temperature at which toluene (b.p. atmospheric conditions 110 °C) will evaporate using...
A heat pump operating with R-134a is used to maintain an indoor temperature of 21°C using...
A heat pump operating with R-134a is used to maintain an indoor temperature of 21°C using heat from the bottom of a lake that stays at 2°C. Assume an 80% efficient compressor. If the heat pump supplies 100 kW of energy to the building, calculate the required mass flow rate and COP for the heat pump. Calculate a few data points to plot the effect of a 10°C temperature range at the cold side on required mass flow rate and...
Calculate the vapor pressure of 3-pentanone (b.p. 102.0 °C) at the gas chromatography column temperature of...
Calculate the vapor pressure of 3-pentanone (b.p. 102.0 °C) at the gas chromatography column temperature of 96.0"C using the form of the Clausius-Clapeyron equation shown below, P1 P. vap where R is the ideal gas constant, ???? is the enthalpy of vaporization, T1 and T2 are two different temperatures, and P1 and P2 are the vapor pressures at the respective temperatures. The enthalpy of vaporization can be estimated using Trouton's rule, ??'vap-(88 J mol-1 K-1), Tp. Number Torr Calculate the...
3. Use the graph below to answer the following questions: Write your answer on the space...
3. Use the graph below to answer the following questions: Write your answer on the space provided (10 points) Carbon disulfide Vapor pressure (mm Hg) Ethanol Heptane 10 20 30 40 50 60 70 Temperature (°C) 80 90 100 110 1. What is the boiling point of heptane when the atmospheric pressure is 100 mmHg? oc II. What is the boiling point of carbon disulfide when the atmospheric pressure is 300 mmHg? III. The boiling point of ethanol was measured...
1. Refer to the vapor-liquid composition curve for a benzene/toluene solution below. a) Are benze...
Need assistance with graph and pre-lab questjons
1. Refer to the vapor-liquid composition curve for a benzene/toluene solution below. a) Are benzene and toluene miscible or immiscible? b) What is the boiling point of a benzene-toluene mixture that is 20% benzene? c) What percent benzene is a benzene-toluene mixture that boils at 85°C? 110 100 95 0F-- 85 A" 80 75 0 10 20 30 40 50 60 7o 80 90 100 Molo porcont benzene 2. Refer to the Boiling...
(a) Explai in, using reference to appropriate gas laws why it is possible to treat water and air at atmospheric pressures and temperatures as a mixture of perfect gases. (6 marks) ( Explain the d...
(a) Explai in, using reference to appropriate gas laws why it is possible to treat water and air at atmospheric pressures and temperatures as a mixture of perfect gases. (6 marks) ( Explain the difference between the terms relative humidity and specific (6 marks) (c) An air conditioning unit is to supply air at 20°C, 1 bar, and relative humidity as means of quantifying the amount of water in air humidity 50% to a lecture theatre. Ambient conditions are 30°C,...
7.34 Consider the following fluids, each with a velocity of V- 3 m/s and a temperature of T 20°C,...
7.34 Consider the following fluids, each with a velocity of V- 3 m/s and a temperature of T 20°C, in cross flow over a 10-mm-diameter cylinder maintained at 50°C: atmospheric air, saturated water, and engine oil. (a) Calculate the rate of heat transfer per unit length, q, using the Churchill-Bernstein correlation. (b) Generate a plot ofq as a function of fluid velocity for o.5 s Vs 10 m/s.
7.34 Consider the following fluids, each with a velocity of V- 3...
please answer 1and 3 quick 1.0 atm, is 0 30 0 110 Temperature oc) 31 Which of the icuowing liquxls "...
please answer 1and 3 quick
1.0 atm, is 0 30 0 110 Temperature oc) 31 Which of the icuowing liquxls "wild hane il high s xii'니nesure, aking into account both tbe nature of t substanse & the temperature? C) NaClat 325°C ) The mole fraction of lead nitrate (mol mass 3312 g/mol) in an aqueous 5.85x101: What is the molar concentrationt of nitrat ons is solution? A) 0.032 NM trate ions in this solution? B) 0.064 M C) 0.096M D)...
need A & C Part A Calculate the volume of 1.32 mol of liquid water at a temperature of 20 °C (at which its den...
need A & C
Part A Calculate the volume of 1.32 mol of liquid water at a temperature of 20 °C (at which its density is 998 kg/m?) Express your answer in meters cubed. 10 AED O ? 24.11 Submit Previous Answers Request Answer * Incorrect; Try Again: 4 attempts remaining Part B Calculate the volume occupied by 1 32 mol of steam at 200 "C. Assume the steam is at atmospheric pressure and can be treated as an ideal...
An air conditioner operating at steady state takes in moist air at 30 °C, 1 bar and a wet bulb temperature of 25
An air conditioner operating at steady state takes in moist air at 30 °C, 1 bar and a wet bulb temperature of 25 °C. The moist air is cooled in the dehumidifier unit and some of the water is removed. There is 10 tons of cooling in the dehumidifier (also called the evaporator of an air conditioner). The condensate and the saturated air stream discharging the section is at 10 °C The moist air is then heated in the heater...
section 18.2 9. A thin, homogeneous bar of length L has initial temperature equal to a...
section 18.2 9. A thin, homogeneous bar of length L has initial temperature equal to a constant B. and the right end (x=L) is insulated , while the left end is kept at a zero temperature. Find the temperature distribution in the bar 1.8. The graph below corresponds to a centrifugal pump with diameter D and operating at a particular speed N when handling water. If the speed is now reduced to half the original speed what will be the...
Calculate the vapor pressure of 3-pentanone (b.p. 102.0 °C) at the gas chromatography column temperature of 96.0"C using the form of the Clausius-Clapeyron equation shown below, P1 P. vap where R is the ideal gas constant, ???? is the enthalpy of vaporization, T1 and T2 are two different temperatures, and P1 and P2 are the vapor pressures at the respective temperatures. The enthalpy of vaporization can be estimated using Trouton's rule, ??'vap-(88 J mol-1 K-1), Tp. Number Torr Calculate the...
3. Use the graph below to answer the following questions: Write your answer on the space provided (10 points) Carbon disulfide Vapor pressure (mm Hg) Ethanol Heptane 10 20 30 40 50 60 70 Temperature (°C) 80 90 100 110 1. What is the boiling point of heptane when the atmospheric pressure is 100 mmHg? oc II. What is the boiling point of carbon disulfide when the atmospheric pressure is 300 mmHg? III. The boiling point of ethanol was measured...
Need assistance with graph and pre-lab questjons
1. Refer to the vapor-liquid composition curve for a benzene/toluene solution below. a) Are benzene and toluene miscible or immiscible? b) What is the boiling point of a benzene-toluene mixture that is 20% benzene? c) What percent benzene is a benzene-toluene mixture that boils at 85°C? 110 100 95 0F-- 85 A" 80 75 0 10 20 30 40 50 60 7o 80 90 100 Molo porcont benzene 2. Refer to the Boiling...
(a) Explai in, using reference to appropriate gas laws why it is possible to treat water and air at atmospheric pressures and temperatures as a mixture of perfect gases. (6 marks) ( Explain the difference between the terms relative humidity and specific (6 marks) (c) An air conditioning unit is to supply air at 20°C, 1 bar, and relative humidity as means of quantifying the amount of water in air humidity 50% to a lecture theatre. Ambient conditions are 30°C,...
7.34 Consider the following fluids, each with a velocity of V- 3 m/s and a temperature of T 20°C, in cross flow over a 10-mm-diameter cylinder maintained at 50°C: atmospheric air, saturated water, and engine oil. (a) Calculate the rate of heat transfer per unit length, q, using the Churchill-Bernstein correlation. (b) Generate a plot ofq as a function of fluid velocity for o.5 s Vs 10 m/s.
7.34 Consider the following fluids, each with a velocity of V- 3...
please answer 1and 3 quick
1.0 atm, is 0 30 0 110 Temperature oc) 31 Which of the icuowing liquxls "wild hane il high s xii'니nesure, aking into account both tbe nature of t substanse & the temperature? C) NaClat 325°C ) The mole fraction of lead nitrate (mol mass 3312 g/mol) in an aqueous 5.85x101: What is the molar concentrationt of nitrat ons is solution? A) 0.032 NM trate ions in this solution? B) 0.064 M C) 0.096M D)...
need A & C
Part A Calculate the volume of 1.32 mol of liquid water at a temperature of 20 °C (at which its density is 998 kg/m?) Express your answer in meters cubed. 10 AED O ? 24.11 Submit Previous Answers Request Answer * Incorrect; Try Again: 4 attempts remaining Part B Calculate the volume occupied by 1 32 mol of steam at 200 "C. Assume the steam is at atmospheric pressure and can be treated as an ideal...
section 18.2 9. A thin, homogeneous bar of length L has initial temperature equal to a constant B. and the right end (x=L) is insulated , while the left end is kept at a zero temperature. Find the temperature distribution in the bar 1.8. The graph below corresponds to a centrifugal pump with diameter D and operating at a particular speed N when handling water. If the speed is now reduced to half the original speed what will be the...
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