Concept explainers
(a)
Interpretation:
The rate of intake of air at ambient conditions in cubic feet per minute needs to be determined.
Concept introduction:
In air the humidity plays a very important role in our daily life and it is also important for the weather because the weather depending on humidity and without humidity there is no weather and it is dangerous to live on earth. There are two main types of humidity which is relative humidity and absolute humidity.
The volume of Air at ambient condition is calculated as:
Here,
(b)
Interpretation:
The number of hours of operation required to fill the cistern needs to be determined.
Concept introduction:
In air the humidity plays a very important role in our daily life and it is also important for the weather because the weather depending on humidity and without humidity there is no weather and it is dangerous to live on earth. There are two main types of humidity which is relative humidity and absolute humidity.
Here,
The time required in hours of operation required to fill the cistern as follows:
Want to see the full answer?
Check out a sample textbook solutionChapter 6 Solutions
EBK ELEMENTARY PRINCIPLES OF CHEMICAL P
- A steel cylinder containing compressed air is stored in a fermentation laboratory ready to provide aeration gas to a small-scale bioreactor. The capacity of the cylinder is 48 litres, the absolute pressure is 0.35 MPa and the temperature is 22°C. One day in mid-summer when the air conditioning breaks down, the temperature in the laboratory rises to 33°C and the valve at the top of the cylinder is accidentally left open. Estimate the proportion of air that will be lost. What assumptions will you make? 2 24 C.arrow_forwardA steel cylinder containing compressed air is stored in a fermentation laboratory ready to provide aeration gas to a small-scale bioreactor. The capacity of the cylinder is 48 liters, the absolute pressure is 0.35 MPa and the temperature is 22°C. One day in mid-summer when the air conditioning breaks down, the temperature in the laboratory rises to 33°C and the valve at the top of the cylinder is accidentally left open. Estimate the proportion of air that will be lost.arrow_forwardA quantity of methyl acetate is placed in an open, transparent, three-liter flask and boiled long enough to purge all air from the vapor space. The flask is then sealed and allowed to equilibrate at 30°C, at which temperature methyl acetate has a vapor pressure of 269 mm Hg. Visual inspection shows 10 mL of liquid methyl acetate present.(a) What is the pressure in the flask at equilibrium? Explain your reasoning.(b) What is the total mass (grams) of methyl acetate in the flask? What fraction is in the vapor phase atequilibrium?(c) The above answers would be different if the species in the vessel were ethyl acetate because methyl acetate and ethyl acetate have different vapor pressures. Give a rationale for that difference.arrow_forward
- A water-carbonating plant is available for use in the home and operates by providing carbon dioxide at 1.0 atm. Estimate the molar concentration of the CO2 in the soda water it produces.arrow_forwardA geochemist in the field takes a small sample of the crystals of mineral compound X from a rock pool lined with more crystals of X. He notes the temperature of the pool, 24. C, and caps the sample carefully. Back in the lab, the geochemist dissolves the crystals in 3.00 L of distilled water. He then filters this solution and evaporates all the water under vacuum. Crystals of X are left behind. The researcher washes, dries and weighs the crystals. They weigh 45.0 g. Using only the information above, can you calculate yes the solubility of X in water at 24." C no If you said yes, calculate it. Be sure your answer has a unit symbol and 3 signiicant digits.arrow_forwardP1A.6 The molar mass of a newly synthesized fluorocarbon was measured in a gas microbalance. is device consists of a glass bulb forming one end of a beam, the whole surrounded by a closed container. The beam is pivoted, and the balance point is attained by raising the pressure of gas in the container, so increasing the buoyancy of the enclosed bulb. In one experiment, the balance point was reached when the fluorocarbon pressure was 327.10Torr; for the same setting of the pivot, a balance was reached when CHF3 (M = 70.014 g mol−1) was introduced at 423.22 Torr. A repeat of the experiment with a di erent setting of the pivot required a pressure of 293.22 Torr of the uorocarbon and 427.22 Torr of the CHF3. What is the molar mass of the fluorocarbon? Suggest a molecular formula.arrow_forward
- A gas mixture contains 10.0 mole% H 2O(v) and 90.0 mole% N 2. The gas temperature and absolute pressure at the start of each of the three parts of this problem are 50°C and 500 mm Hg. Ideal-gas behavior may be assumed in every part of this problem.(a) If some of the gas mixture is put in a cylinder and slowly cooled at constant pressure, at what temperature would the first drop of liquid form?(b) If a 30.0-liter flask is filled with some of the gas mixture and sealed and 70% of the water vapor in the flask is condensed, what volume (cm 3 ) would be occupied by the liquid water? What would be the system temperature?(c) If the gas mixture is stored in a rigid-walled cylinder and a low-pressure weather front moves in and the barometric (atmospheric) pressure drops, which of the following would change: (i) the gas density, (ii) the absolute pressure of the gas, (iii) the partial pressure of water in the gas, (iv)the gauge pressure of the gas, (v) the mole fraction of water in the gas, (vi)…arrow_forwardSome N2 gas is mixed with some O2 gas, and the sketch below shows a representative sample of the mixture. The total pressure of the mixture is measured, and found to be 0.130 kPa. key carbon hydrogen nitrogen sulfur oxygen chlorine Calculate the mole fraction and partial pressure of each gas in this mixture. Round your answers to 3 significant digits. You may assume each gas behaves as an ideal gas. gas mole fraction partial pressure ☐ x10 N2 ||] ☐ kPa ☑ 02 ☐ ☐ kPaarrow_forward1. A piece of metal "X" weighing 0.0382 g was placed in an eudiometer containing dilute aqueous HCI. After the metal fully dissolved,15.4 mL of hydrogen gas was collected by displacement of water and a 400 mm column of water was observed. The water temperature was 25 degrees Celcius and the barometric pressure was 758.8 mm Hg (torr). Refer to the introduction and data sheet to solve the following problems. a) Calculate the volume occupied by the hydrogen gas at STP. b) How many moles of the metal were consumed in the reaction? c) What is the molar mass of the metal?arrow_forward
- Carbureted water gas is produced in the same way as blue water gas but in the presence of cracked oil vapors in a carburetor. A typical gas analysis shows 4.7%CO2, 7.8% C2H4, 0.3%O2, 36.5%H2, 35.5% CO, 8.6% CH4 and 6.6% N2. If this gas is saturated with H2O at 200C, 742 torrs and burned in 10.434 m3 air at 30oC, 101 kPa and 60% RH per m3 fuel, calculate: a) % excess 02 (183%) b) Orsat analysis of the stack gas(4000C,760 torrs) if 85% of C burns to CO2; all H2 burns to H2O. Ans (5.33%CO2, 0.94%CO)arrow_forwardUnderwater, the pressure increases by 1 bar for every 10 m of depth. When a scuba diver breathes pressurized air in which the partial pressure of N2(g) exceeds 4 bar, the result is nitrogen narcosis, which is similar to alcohol intoxication. What is the maximum mole percent of N2 in an air mixture that could be used by divers at depths up to 85 m below sea level without undue risk of nitrogen narcosis?arrow_forward+ |/ 00 %24 D. Two bulbs are connected by a stopcock. The 7.50 L bulb contains nitric oxide (NO) at a pressure of 0.340 bar, and the 2.50 L bulb contains oxygen (O,) at a pressure of 0.510 bar. 02 ON After the stopcock is opened, the gases mix and react to produce nitrogen dioxide (CON) 2 NO(g) + 0,(g) – 2 NO,(g) Considering that the volume remains unchanged during the experiment, how does the total pressure in the bulbs change if the reaction is allowed to go to completion? The total pressure will remain constant. O There is not enough information to determine how the total pressure will change. O The total pressure will decrease. O The total pressure will increase. MacBook Pro ( The %23 %24 7. 4. 5. 3. R %3D K. H. B C. option command MOSISOarrow_forward
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
- Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY