The National Ambient Air Quality Standard for nitrogen dioxide (NO2) is 0.053 ppmv. What is the...
The National Ambient Air Quality Standard for nitrogen dioxide (NO2) is 0.053 ppmv. What is the concentration in mg/m3 at a temperature of 25 °C and a pressure of 1 atm.
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The National Ambient Air Quality Standard for nitrogen dioxide (NO2) is 0.053 ppmv. What is the...
Based on the “National Ambient Air Quality Objectives”, the acceptable hourly average concentration of carbon monoxide...
Based on the “National Ambient Air Quality Objectives”, the acceptable hourly average concentration of carbon monoxide (CO) is 35 mg/m3 . Find the acceptable concentration of CO in ppm if the temperature is -30oC and pressure is 0.92 atm. Express the concentration as a percent by volume.
In Downtown the average concentration of atmospheric nitrogen dioxide (NO2) during March is 10 ppb; what...
In Downtown the average concentration of atmospheric nitrogen dioxide (NO2) during March is 10 ppb; what is the concentration in µg/m3 (assume standard temperature and pressure: 25°C, 1 atm)?
Suppose the average concentration of NO2 is measured to be 85 micrograms/m^3 at 25 degree Celsius...
Suppose the average concentration of NO2 is measured to be 85 micrograms/m^3 at 25 degree Celsius and 1 atm. MW of N02 is 46 grams. 1. Express that in standard ppmv at 1 atm of pressure and 25 degree Celsius. 2. Does this exceed the air quality standard of 53 ppbv at 25 degree Celsius and 1 atm? 3. At the elevation of Denver, the pressure is about .82 atm. Express the NO2 standard of 53 ppb in micrograms/m^3 at...
The answers for part a-c are on there. Just have no idea how to do the...
The answers for part a-c are on there. Just have no idea how
to do the work.
Ans: a) 7,000 ng/L: b) 7.2 10-mol/L; c) 72,000 PM 3. Sulfur dioxide, SO2(g), is a colorless gas at ambient temperature and pressure. It has a pungent. irritating odor with an odor threshold of approximately 2.5 ppmv. a) Express that odor threshold in units of mol of sulfur dioxide per cubic meter of air at 1 atm of total pressure and 25 °C....
A typical concentration of nitrogen dioxide (NO2) in photochemical smog is 400 μg/m3. Calculate the mixing...
A typical concentration of nitrogen dioxide (NO2) in photochemical smog is 400 μg/m3. Calculate the mixing ratio (ppbv) of NO2 . Assume T=20°C =293K; P = atmospheric pressure. MW of NO2 = 46g/mol. Please explain and write out every step!
S-4. In the indoor air of the room described in S-3 above, nitrogen dioxide (NO2) is...
S-4. In the indoor air of the room described in S-3 above, nitrogen dioxide (NO2) is continuously released from a combustion source and destroyed by photochemical reactions, at a constant rate of 40 μg/min. The steady state concentration of NO2 in this room is measured to be 20 μg/m3. Calculate its residence time.
Be sure to answer all parts. A) Nitrogen dioxide decomposes according to the reaction 2 NO2(g)...
Be sure to answer all parts. A) Nitrogen dioxide decomposes according to the reaction 2 NO2(g) ⇌ 2 NO(g) + O2(g) where Kp = 4.48 × 10−13 at a certain temperature. If 0.85 atm of NO2 is added to a container and allowed to come to equilibrium, what are the equilibrium partial pressures of NO(g) and O2(g)? ___atm O2 ___atm NO B) For the following reaction, Kp = 0.262 at 1000°C: C(s) + 2H2(g) ⇌ CH4(g) At equilibrium, the partial...
Be sure to answer all parts. Nitrogen dioxide decomposes according to the reaction 2 NO2(g) =...
Be sure to answer all parts. Nitrogen dioxide decomposes according to the reaction 2 NO2(g) = 2 NO(g) + O2(g) where Kp = 4.48 x 10-13 at a certain temperature. If 0.80 atm of NO2 is added to a container and allowed to come to equilibrium, what are the equilibrium partial pressures of NO(g) and O2(g)? atm 02 atm NO
Question 7 At low temperature nitrogen dioxide molecules join together to form dinitrogen tetroxide. 2 NO2(g)...
Question 7 At low temperature nitrogen dioxide molecules join together to form dinitrogen tetroxide. 2 NO2(g) + N204(9) (low temperature) A sample of NO2 sealed inside a glass bulb at 23 °C gave a pressure of 673 Torr. Lowering the temperature to -5 °C converted the NO2 to N204. What was the final pressure (in Torr) inside the bulb? Torr
P2) (50 pts.) The boiling temperature of nitrogen at atmospheric pressure at sea level (1 atm pre...
P2) (50 pts.) The boiling temperature of nitrogen at atmospheric pressure at sea level (1 atm pressure) is -196°C. Therefore, nitrogen is commonly used in low-temperature scientific studies, since the temperature of liquid nitrogen in a tank open to the atmosphere will remain constant at -196°C until it is depleted. Any heat transfer to the tank will result in the evaporation of some liquid nitrogen, which has a heat of vaporization of 198 kJ/kg and a density of 810 kg/m3...
The answers for part a-c are on there. Just have no idea how
to do the work.
Ans: a) 7,000 ng/L: b) 7.2 10-mol/L; c) 72,000 PM 3. Sulfur dioxide, SO2(g), is a colorless gas at ambient temperature and pressure. It has a pungent. irritating odor with an odor threshold of approximately 2.5 ppmv. a) Express that odor threshold in units of mol of sulfur dioxide per cubic meter of air at 1 atm of total pressure and 25 °C....
Be sure to answer all parts. Nitrogen dioxide decomposes according to the reaction 2 NO2(g) = 2 NO(g) + O2(g) where Kp = 4.48 x 10-13 at a certain temperature. If 0.80 atm of NO2 is added to a container and allowed to come to equilibrium, what are the equilibrium partial pressures of NO(g) and O2(g)? atm 02 atm NO
Question 7 At low temperature nitrogen dioxide molecules join together to form dinitrogen tetroxide. 2 NO2(g) + N204(9) (low temperature) A sample of NO2 sealed inside a glass bulb at 23 °C gave a pressure of 673 Torr. Lowering the temperature to -5 °C converted the NO2 to N204. What was the final pressure (in Torr) inside the bulb? Torr
P2) (50 pts.) The boiling temperature of nitrogen at atmospheric pressure at sea level (1 atm pressure) is -196°C. Therefore, nitrogen is commonly used in low-temperature scientific studies, since the temperature of liquid nitrogen in a tank open to the atmosphere will remain constant at -196°C until it is depleted. Any heat transfer to the tank will result in the evaporation of some liquid nitrogen, which has a heat of vaporization of 198 kJ/kg and a density of 810 kg/m3...
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