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2. A water-air system at a temperature of 37 °C and pressure of 760 mmHg, contains...
3. A mixture of benzene and water distills at 83°C at 760 mmHg. At 83 C the vapor pressure of water is 401mmHg. What is the mole % of the vapor during distillation? What is the weight of benzene that is distilled with each gram of water? b. a.
3. A mixture of benzene and water distills at 83°C at 760 mmHg. At 83 C the vapor pressure of water is 401mmHg. What is the mole % of the vapor...
The next three questions go together 21. Expired air is saturated with water vapor and generally contains more of it than does inspired air. There is usually a net loss of water from the body due to breathing. Water vapor pressure in the at saturation in the lungs (at 37°C) is 47 mmHg, while in expired air at 33°C it is 37.7 mmHg. Consider the case of someone who is breathing dry air in and moist air out at a...
The next three questions all go together. 21. Expired air is saturated with water vapor and generally contains more of it than does inspired air. There is usually a net loss of water from the body due to breathing. Water vapor pressure in the at saturation in the lungs (at 37°C) is 47 mmHg, while in expired air at 33°C it is 37.7 mmHg. Consider the case of someone who is breathing dry air in and moist air out at...
Question 1 1 pts At a certain temperature, the vapor pressure of chloroform is 30.6 mmHg and the vapor pressure of dichloromethane is 510.8 mmHg. A chloroform/dichloromethane solution contains equal moles of each substance. Answer the questions below about this substance. The chloroform can be enriched by [Select] The dichloromethane can be enriched by [Select) If the solution behaves ideally, the vapor pressure of the solution should be (Enter your answer in decimal form. Do not enter'units since they are...
At 15 ◦C, the water vapor pressure is 12.79 mmHg. What is the maximum mass of water contained in 2.00·105 L of air at 15 ◦C? The molar mass of water is 18.015 g/mol, 1.00 atm = 760 mmHg, T(K) = T(◦C) + 273. (A) 49.26 kg (B) 2734 g (C) 2566 g (D) 151.8 g (E) 7.91 g
Not submitted The partial pressure of water vapor in saturated air at 14 °C is 1.58x10-2 atm. (a) How many molecules of water are in 3.35 cm of saturated air at 14 °C? molecules (b) What volume of saturated air at 14 °C contains 0.550 mol of water?
1. The normal (at 760 mmHg, or 1 atm) boiling point of water is 100°C. What mass of glucose (C6H202) would you have to dissolve in 1000 g of water to decrease the vapor pressure at 100°C by 1%? Assume that water follows Raoult's law. M(H2O) = 18.02 g/mol, M(C6H1206) = 180.2 g/mol. (10 pts) 2. What is the normal boiling point of such a solution? Assume ideal behavior. The ebullioscopic (boiling-point elevation) constant of water is Kp = 0.512...
Consider a “cold” winter day in with an air temperature of 7.22 °C and relative humidity of about 20% (moisture content 0.001 g H2O/g dry air). A person waiting at a bus stop inhales at an average rate of 8 g dry air/min and exhales air saturated with water at body temperature (37°C) and 1 atm (molal humidity is 6.7%). The heat capacity of dry air is 1.05 J/g- °C. Estimate the rate of heat loss from breathing. Express your...
Q3. (7.5 marks) A gas mixture containing 88.0 mol% N2 and 12.0 mol% ethanol vapor, flows through a pipe at a rate of 100 m/h. The pressure is 760 mmHg absolute and the temperature is 50°C. a) What is the partial pressure of ethanol vapor in the gas mixture? b) What is the molar flowrate of the gas mixture in kmol/h c) Is the gas mixture saturated? if not, to what temperature (in °C) would it be cooled at constant...
Consider the following reaction: 2NiO(s)→2Ni(s)+O2(g) Vapor Pressure of Water versus Temperature Temperature (∘C) Pressure (mmHg) Temperature (∘C) Pressure (mmHg) 0 4.58 55 118.2 5 6.54 60 149.6 10 9.21 65 187.5 15 12.79 70 233.7 20 17.55 75 289.1 25 23.78 80 355.1 30 31.86 85 433.6 35 42.23 90 525.8 40 55.40 95 633.9 45 71.97 100 760.0 50 92.6 Part A If O2 is collected over water at 40.0 ∘C and a total pressure of 742 mmHg ,...