what is th relative humidity when the air temperature is 29 degreeC and the wet-bulb temperature is 23degree C

Question

a. 6%
b. 54%
c. 20%
d. 60%

Answer 1

Hey, stop using this forum for your homework!

To figure this out, you need a relative humidity table. Use the link below.

You use two values. The dry bulb temperature, with is the true air temperature, and the DIFFERENCE between the dry and wet bulb reading, in your case is 6. So look up 29 and 6 on the table.

This works because wet bulb cools the thermometer as it evaporates, and it evaporates more if the air is drier. If there is a big difference between the wet and the dry bulb, the humidity is low.

Also, warmer air holds on to more moisture in the air.

Finding out the dew point works the same way. You use the dew point table. (Dew point is the temperature at which water condenses)

By the way, the answer is 60%

Answer 2

a relative humidity calculator, which you
can find at http://www.nga.mil/portal/site/maritime/?epi_menuItemID=8e61fdb6ecf4e0c21b2079106327a759&epi_menuID=0feacf38cf96a8b21b2079106327a759&epi_baseMenuID=e106a3b5e50edce1fec24fd73927a759