In this problem, temperature is held constant but humidity varies. Use Table 25.1 to find water-vapor capacity, and then use the formula for relative humidity to complete the following chart. What happens to relative humidity when water vapor is added? What happens when water vapor is removed?

Relative humidity = humidity/capacity × 100,

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Relative Air Temperature Humidity Humidity Capacity 2.0 g/kg g/kg 10°C 5.0 g/kg g/kg 10°C 7.0 g/kg g/kg 10°C TABLE 25.1 WATER-VAPOR CAPACITY VS. TEMPERATURE Temperature (°C) Temperature (°F) Maximum Specific Humidity (g/kg) 32 3.8 5 41 5.0 50 7.8 15 59 10.0 20 68 15.0 25 77 20.0 30 86 27.7 35 95 35.0 으므