Question

select the correct answer from the drop - down menu. the graph shows the maximum amount of water vapor that air can hold at different temperatures. beths hygrometer is reading a temperature of 30°c and a relative humidity of 65%. the humidity in the air is grams/cubic meter.

Explanation:

Step1: Find max humidity at 30°C

From the graph, at 30°C, the maximum water - vapor density (maximum humidity) is 30 grams/cubic meter.

Step2: Calculate actual humidity

The relative humidity formula is $Relative\ humidity=\frac{Actual\ humidity}{Maximum\ humidity}\times100\%$. We know relative humidity = 65% and maximum humidity = 30 grams/cubic meter. Rearranging the formula for actual humidity gives $Actual\ humidity=\frac{Relative\ humidity}{100\%}\times Maximum\ humidity$. Substituting the values: $Actual\ humidity=\frac{65}{100}\times30 = 19.5$ grams/cubic meter.

Answer:

19.5