The relative humidity within a forest is 50% with a temperature of 23 oC during the...
The relative humidity within a forest is 50% with a temperature of 23 oC during the day. Would you predict there will be dew on the forest floor next morning if the night temperature falls to 15 oC ? Show your calculation
Homework Answers
Add Answer to:
The relative humidity within a forest is 50% with a temperature
of 23 oC during the...
Define (a) relative humidity and (b) temperature . Use your OWN words and (briefly) explain the...
Define (a) relative humidity and (b) temperature . Use your OWN
words and (briefly) explain the physical processes involved.
1c) Explain the relationship between temperature and relative
humidity as shown in the data sets
1d) Define dew point . Would you expect to observe any dew
formation at any time on 21 June 2018 at either site? Explain
why/why not.
Plot for DRA 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15...
1. (relative humidity) The partial pressure of water vapor in air is usually less than the...
1. (relative humidity) The partial pressure of water vapor in air is usually less than the equilibrium vapor pressure (or saturation pressure) at the ambient temperature; this is why a cup of water will spontaneously evaporate. The ratio of the partial pressure of water vapor to the equilibrium vapor pressure (at the same temperature) is called the relative humidity. Saturated air, at 100% relative humidity, would be in equilibrium with a cup of liquid water. The saturation pressure depends strongly...
An air mixture is intended to moisturize. A temperature of 20 oC with a relative humidity...
An air mixture is intended to moisturize. A temperature of 20 oC with a relative humidity of 70%. If you increase the relative humidity by 90%. What molar fraction of water is needed in air at 70% and 90% humidity? (Use saturation pressure)
The weather report indicates that the temperature outside is 15°C with a relative humidity of 75%....
The weather report indicates that the temperature outside is 15°C with a relative humidity of 75%. Using this information, provide the following: a) Wet bulb temperature b) Dew point temperature c) Moisture content of the outside air d) Specific volume of the outside air e) Enthalpy of the outside air f) How much moisture would you need to add to the air in order to saturate it? (Give this answer in kg moisture/kg dry air). g) The air temperature in...
On a relatively cool summer morning in Denver, Colorado, the temperature was 13 °Celsius and the...
On a relatively cool summer morning in Denver, Colorado, the temperature was 13 °Celsius and the air was partially saturated with RH = 50%. That afternoon, the temperature rose to 32 °Celsius. If the same air mass remained in place all day (meaning the moisture content did not change throughout the day). a. Would the relative humidity increase or decrease in the afternoon? b. What was the relative humidity during that afternoon (rounded to the nearest whole percent)? Show your...
Air at 50% relative humidity is cooled isobarically at 1 atm absolute from 90⁰C to 25⁰C....
Air at 50% relative humidity is cooled isobarically at 1 atm absolute from 90⁰C to 25⁰C. a) Estimate the dew point and degrees of superheat of the air at 90⁰C. b) How much water condenses (mol) per cubic meter of feed gas? c) Suppose a sample of the 90⁰C air is put in a closed variable-volume chamber containing a mirror and the pressure is raised at constant temperature until a mist forms on the mirror. At what pressure (atm) would...
We are learning about relative humidity. 1st part- what is the water vapor content at 25 degree C air if its relative humidity is 50%? 50=10/20 x 100% gives me the water vapor content of 10g/kg. 2nd p...
We are learning about relative humidity. 1st part- what is the water vapor content at 25 degree C air if its relative humidity is 50%? 50=10/20 x 100% gives me the water vapor content of 10g/kg. 2nd part- If the air was at 25 degree C at sea level, and rises to 1,000 meters, then what will its temperature be? It will drop by 10 degree C, so the temperature will be 15 degrees C. At 15 degree's C the...
An air mass has a temperature of 18°C and a relative humidity of 42%. a) Determine the vapor pres...
An air mass has a temperature of 18°C and a relative humidity of 42%. a) Determine the vapor pressure and saturation vapor pressure of the air. You can use tables from the Gupta text, or the equations presented in class (which are alsc in the evapotranspiration references on the camino site). Or you may use both to be more confident of your work. b) Assume the air mass rises and cools at a rate of -10 C/km. At what elevation...
Problem #2 Over the last century, the summertime minimum air temperature during the day across the...
Problem #2 Over the last century, the summertime minimum air temperature during the day across the mid-continental North America shows an upward trend. The amount of increase corresponds to about 6 W m2 additional radiation forcing. Some speculate that the increase is due to enhanced atmospheric thermal radiation at the surface. The thermal radiation increase is partially blamed on observed increases in atmospheric humidity because of all the irrigation that is increasing applied across the region. If the summertime minimum...
4. Air-Conditioning Unit [20 Marks] 1 m3/s of moist air at 32 °C with a relative...
4. Air-Conditioning Unit [20 Marks] 1 m3/s of moist air at 32 °C with a relative humidity of 70% is to be treated by a simple air condition system to produce air at 18 °C with a relative humidity of 50% The system will have two stages. In the first stage, the air will pass over cooling coils to dehumidify it, and in the second stage it will be heated electrically to the specified outlet conditions You may ignore the...
Define (a) relative humidity and (b) temperature . Use your OWN
words and (briefly) explain the physical processes involved.
1c) Explain the relationship between temperature and relative
humidity as shown in the data sets
1d) Define dew point . Would you expect to observe any dew
formation at any time on 21 June 2018 at either site? Explain
why/why not.
Plot for DRA 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15...
1. (relative humidity) The partial pressure of water vapor in air is usually less than the equilibrium vapor pressure (or saturation pressure) at the ambient temperature; this is why a cup of water will spontaneously evaporate. The ratio of the partial pressure of water vapor to the equilibrium vapor pressure (at the same temperature) is called the relative humidity. Saturated air, at 100% relative humidity, would be in equilibrium with a cup of liquid water. The saturation pressure depends strongly...
The weather report indicates that the temperature outside is 15°C with a relative humidity of 75%. Using this information, provide the following: a) Wet bulb temperature b) Dew point temperature c) Moisture content of the outside air d) Specific volume of the outside air e) Enthalpy of the outside air f) How much moisture would you need to add to the air in order to saturate it? (Give this answer in kg moisture/kg dry air). g) The air temperature in...
An air mass has a temperature of 18°C and a relative humidity of 42%. a) Determine the vapor pressure and saturation vapor pressure of the air. You can use tables from the Gupta text, or the equations presented in class (which are alsc in the evapotranspiration references on the camino site). Or you may use both to be more confident of your work. b) Assume the air mass rises and cools at a rate of -10 C/km. At what elevation...
Problem #2 Over the last century, the summertime minimum air temperature during the day across the mid-continental North America shows an upward trend. The amount of increase corresponds to about 6 W m2 additional radiation forcing. Some speculate that the increase is due to enhanced atmospheric thermal radiation at the surface. The thermal radiation increase is partially blamed on observed increases in atmospheric humidity because of all the irrigation that is increasing applied across the region. If the summertime minimum...
4. Air-Conditioning Unit [20 Marks] 1 m3/s of moist air at 32 °C with a relative humidity of 70% is to be treated by a simple air condition system to produce air at 18 °C with a relative humidity of 50% The system will have two stages. In the first stage, the air will pass over cooling coils to dehumidify it, and in the second stage it will be heated electrically to the specified outlet conditions You may ignore the...
Most questions answered within 3 hours.
-
The free energy change for the following reaction at 25 °C, when
[Sn2+] = 1.17 M...
asked 1 hour ago -
An MNE is this kind of industry when competition in one country
is essentially independent of...
asked 2 hours ago -
. For this set of questions, determine what
proportion of a normal distribution is located betweeneach...
asked 3 hours ago -
A college student is employed as a door-to-door newspaper
salesman. Historical data suggests that the student...
asked 4 hours ago -
MATLAB HW 11 problem using Switch Case and Input commands
Write a script file that calculates...
asked 3 hours ago -
Considering gravitational time dilation, calculate the time that
passes in Earth’s surface while 1 hour passes...
asked 4 hours ago -
Minitab Problem: Take the Lake Hume June rainfall data and find
use the processes outlined in...
asked 5 hours ago -
X Company is trying to decide whether to continue using old
equipment to make Product A...
asked 5 hours ago -
IN PYTHON ONLY !! Program 2: Re-work
program #5 (WeeklyHours) from the previous assignment such that...
asked 6 hours ago -
The average length of time between arrivals at a turnpike
toll-booth is 26 seconds. What is...
asked 7 hours ago -
(a) A piston at 6.1 atm contains a gas that occupies a volume of
3.5 L....
asked 8 hours ago -
Please answer true or false. Words
cannot be changed or added in to make it true...
asked 8 hours ago