Air temperature + 15 ° C. The moisture deficit is 3.2 g / m3. What is the relative humidity of the air?

1) According to the table, we determine that at a temperature of + 15 ° C Q = 13 g / m3
2) Find the absolute humidity: q = 13 g / m3 – 3.2 g / m3 = 9.8 g / m3
3) Determine the relative humidity:
r = q: Q × 100% = 9.8 g / m3: 13 g / m3 × 100% = 75.4%
Answer: the relative humidity is 75.4%.

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