For the following questions refer to the temperature and dew point data in the following cities:
-Consider the situation where the air temperature in a room is 21ºC, the saturation vapour pressure is 25 hPa, the dew point temperature is 7ºC, and the actual vapour pressure is 10 hPa. Which of the following is the relative humidity?
A)near 40%
B)near 35%
C)near 20%
D)near 15%

Question

For the following questions refer to the temperature and dew point data in the following cities: 
-Consider the situation where the air temperature in a room is 21ºC, the saturation vapour pressure is 25 hPa, the dew point temperature is 7ºC, and the actual vapour pressure is 10 hPa. Which of the following is the relative humidity?
A)near 40% 
B)near 35% 
C)near 20% 
D)near 15%

Quizplus · Accepted Answer

Relative humidity is calculated as the ratio of the actual vapor pressure to the saturation vapor pressure, multiplied by 100 to convert it to a percentage. In this case, it's (10 hPa / 25 hPa) * 100 = 40%.

For the Following Questions Refer to the Temperature and Dew