What is the saturation mixing ratio

Reference no: EM133191429 , Length: Word count: 3 Pages

Question 1:

Evaporation absorbs/releases (circle your answer) __________ (#) calories.
Deposition absorbs/releases (circle your answer) __________ (#) calories.
Freezing absorbs/releases (circle your answer) __________ (#) calories.

Question 2: What is the saturation mixing ratio for a unit of air at 20°C?

Question 3: If a kilogram of air contains 10 grams of water, at what temperature (°C) would it reach dew point?

Question 4: The air temperature is 5°C and the air contains 3 gm/kg of water vapor. What is the relative humidity?

Question 5: Fill in the remainder of the table below. Consider you have used a sling psychrometer and received the data in the first 2 columns. Then use the sling psychrometer in class to fill in the last 2 columns.

	Example 1	Example 2	Inside	Outside
Dry bulb temp. (°C)
Wet bulb temp. (°C)
Wet bulb depression (°C)
Relative humidity (%)
Dew point temp. (°C)
Saturation mixing ratio (gm/kg)
Mixing ratio (gm/kg)

Question 6: Determine the current barometric pressure from the aneroid barometer in the classroom. Inches of mercury (in) Millibars (mb)

Question 7: Determine the current barometric pressure from the mercury barometer in the classroom. Inches of mercury (in) Centimeters of mercury (cm)

Question 8: Using the barograph (graph 1) fill in the chart below.

Highest barometric pressure (mb)
Date and time of highest pressure
Lowest barometric pressure (mb)
Date and time of lowest pressure
March 22nd at 6pm (mb)
March 26th at 4am (mb)

Question 9: Using the Temperature and RH graph (graph 2) fill in the chart below

Highest temperature (°F)
What average time is the highest temperature each day
Lowest temperature (°F)
What average time is the lowest temperature each day
Highest percent (%) relative humidity (RH)
What average time is the highest relative humidity (RH) each day
Lowest percent (%) relative humidity (RH)
What average time is the lowest relative humidity (RH) each day
Temperature (°F) and relative humidity (%) on March 21st at noon
Temperature (°F) and relative humidity (%) On March 24th at 8pm

Question 10: Using your answers from the last question; what is the relationship between temperature and relative humidity?

Question 11: Using the heat index table (table 4) fill in the table below.

Temp. (°C)	RH (%)	Heat Index (°C)
25	65
35	90
38	65

Question 12: Using the wind chill factor table (table 5) fill in the table below.

Temp. (°C)	Wind Speed (kph)	Wind Chill Factor (°C)
-10	40
-5	10
-40	50

Question 13: Draw isotherms on the US map on the next page at 5°F intervals. Don't forget to label the isotherms after you have drawn them.

Reference no: EM133191429

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