Homework Answers
Add Answer to:
Problem 7 Convert a concentration of SO2 from 0.50 ppm to units of μ g/m3. Assume...
The NOx concentration is given as 1.42 x 10-7 g L-1. Convert this concentration to ppm....
The NOx concentration is given as 1.42 x 10-7 g L-1. Convert this concentration to ppm. (hint: assume an average molar mass of the NOx compounds). Does this concentration meet the NAAQS for the 1-hour average?
16) The concentration of carbon monoxide is 5.5 g/m3. Convert this to ppmy at temperature of...
16) The concentration of carbon monoxide is 5.5 g/m3. Convert this to ppmy at temperature of 30 °C and pressure of 700 mm Hg. (7 points) 17)Determine the density of air at 75 °F and 14.7 psia. The molecular weight of air is 29 g/gmole? (6 points)
Given: At normal temperature and pressure, the following conversion formulas may be used to convert back...
Given: At normal temperature and pressure, the following conversion formulas may be used to convert back and forth between ppm and mg/m3 . mg/m3= [(MW x ppm) / 24.45] or ppm = [(24.45 x mg/m3 ) / MW] MW: molecular weight in g/mole In these equations 24.45 is the volume (in liters) of a mole (gram molecular weight) of a gas or vapor when the pressure is at 1 atmosphere (760 mmHg) and the temperature is at 25°C. When temperature...
Unit conversion. (10 pts) Convert a concentration of 5.62 ´1013 molecules/cm 3 to the ppb scale....
Unit conversion. (10 pts) Convert a concentration of 5.62 ´1013 molecules/cm 3 to the ppb scale. Assume 25° C and 1.0 atm total air pressure. Convert a concentration of 6.0 ´1014 molecules/cm 3 to the moles per liter (molarity) scale. Assume 27.5° C and 0.99 atm total air pressure. Convert a concentration of 36.5 ppb of ozone, O3, into the number of molecules/cm3. Assume the air mass temperature is 25.3° C and its total pressure is 1.05 atm. Convert a...
Problem 2.5 Constant Pressure Process Air is compressed from 0.092 m3 to 0.034 m’ at a...
Problem 2.5 Constant Pressure Process Air is compressed from 0.092 m3 to 0.034 m’ at a constant pressure of 1.7 kPaa. Assume Perfect Gas behavior. ko kPa m3 Cpair = 29.11 ( = T(°C) + 273.15 kgmole K Tinitial = 18.9 °C Calculate the heat of the process (Q) in kJ with the calculated enthalpy. (provide your answer with four significant figures and enter the required units) Hint: Store your calculated value in one of the memories of your calculator...
7 - (a) List the six criteria pollutants and write the standards for them. (b) “Clean”...
7 - (a) List the six criteria pollutants and write the standards for them. (b) “Clean” air might have a sulfur dioxide (SO2) concentration of < 25 ppbv, while polluted air might have a concentration of 15 ppmv. Convert these two concentrations to μg/m3 . Assume a temperature of 298 K. (note the difference units of concentrations, ppmv versus ppbv).
The molar heat capacity of SO2(g) changes with temperature, and is approximately described by the following...
The molar heat capacity of SO2(g) changes with temperature, and is approximately described by the following equation: Cp,M/R = 3.093 + (6.967 x 10-3 K-1)T In this equation, T is the absolute temperature in kelvin (K). The K-1 ensures that Cp,M has the correct dimensions. Assuming ideal gas behavior, calculate q and delta H if 1.5 mol of SO2(g) is heated from 25o C to 1140o C at a constant pressure of 1 bar. Explain the sign of q.
1. 200 ml in 1 m’ is how many PPM? 2. 75 L of vapor in...
1. 200 ml in 1 m’ is how many PPM? 2. 75 L of vapor in 2000 ft of vapor is how many PPM? 3. What is the partial pressure of SO2 at a concentration of 41000 PPM at STP? 4. If 2 liters of toluene, SpG = .86, GMW = 92.1 g/mole, spills in a room 60ft x 30ft x 15ft, what is the concentration in PPM of toluene present in the room? 5. If 700 ml of perchloroethylene...
Part A Constants | Periodic Table The molar heat capacity Cp,m of SO2 (g) is described by the fol...
Please help me solve for delta H, I can't get it.
Thank you!
Part A Constants | Periodic Table The molar heat capacity Cp,m of SO2 (g) is described by the following equation over the range 300 K
A wide 2000 m3 laboratory has a ventilation system. This may be designed to eliminate toxicants...
A wide 2000 m3 laboratory has a ventilation system. This may be designed to eliminate toxicants from the laboratory to the outside so the ventilation system maintains safe , comfortable and respiratory conditions for all laboratory users and decreases the risk of dangerous pollutants. At a volumetric fluctuation rate of 900 m3 / min at 20 °C and 1 atm, the ventilated air is discharged, which is often to be known as a lab temperature and pressure. The lab was...
16) The concentration of carbon monoxide is 5.5 g/m3. Convert this to ppmy at temperature of 30 °C and pressure of 700 mm Hg. (7 points) 17)Determine the density of air at 75 °F and 14.7 psia. The molecular weight of air is 29 g/gmole? (6 points)
Problem 2.5 Constant Pressure Process Air is compressed from 0.092 m3 to 0.034 m’ at a constant pressure of 1.7 kPaa. Assume Perfect Gas behavior. ko kPa m3 Cpair = 29.11 ( = T(°C) + 273.15 kgmole K Tinitial = 18.9 °C Calculate the heat of the process (Q) in kJ with the calculated enthalpy. (provide your answer with four significant figures and enter the required units) Hint: Store your calculated value in one of the memories of your calculator...
1. 200 ml in 1 m’ is how many PPM? 2. 75 L of vapor in 2000 ft of vapor is how many PPM? 3. What is the partial pressure of SO2 at a concentration of 41000 PPM at STP? 4. If 2 liters of toluene, SpG = .86, GMW = 92.1 g/mole, spills in a room 60ft x 30ft x 15ft, what is the concentration in PPM of toluene present in the room? 5. If 700 ml of perchloroethylene...
Please help me solve for delta H, I can't get it.
Thank you!
Part A Constants | Periodic Table The molar heat capacity Cp,m of SO2 (g) is described by the following equation over the range 300 K
Most questions answered within 3 hours.
-
Discuss what you think the exit polls tell us about voters.
asked 19 minutes ago -
The electron in a hydrogen atom can undergo a transition from
n=1 to n=6, absorbing a...
asked 35 minutes ago -
Based on what you learned in chapter 11, why would an
individual with a high BMI...
asked 41 minutes ago -
Assume the economy can be described by the consumption function
C = $300 billion + 0.9Y...
asked 33 minutes ago -
Within an environment where change is needed, you must recognize
the obstacles that can make changes...
asked 26 minutes ago -
Travelcraft, Inc., manufactures a complete line of fiberglass
suitcases and attaché cases. The firm has...
asked 33 minutes ago -
1a.
During 2021, a company sells 270 units of inventory for $94
each. The company has...
asked 41 minutes ago -
A 7.3 kg ladder, 1.92 m long, rests on two sawhorses, as shown
in Figure 20....
asked 50 minutes ago -
What is an important first step when conducting a usability
study?
A) Develop measurable tasks that...
asked 50 minutes ago -
Suppose Y ~ N(4,200) and Z ~ N(6,25) and Y and Z are
independent. What is...
asked 1 hour ago -
Define poikilotherm and homeotherm, highlighting how
they are different. Both homeotherms and poikilotherms do not have...
asked 1 hour ago -
Maintenance is defined as?
A. Repair
B. Actions to Achieve a determined level or Reliability
C....
asked 1 hour ago