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Calculating Relative Humidity Practice

Calculating Relative Humidity Practice. Use table from MJ 2006 Paper 1 Q4. Wet & Dry Bulb Thermometer. Wet/Dry Bulb thermometer Hygrometer. WET. DRY. Relative Humidity Table. Reminder. You need 3 things to calculate the %RH using the table on the previous slide Dry Bulb Temperature

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Calculating Relative Humidity Practice

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  1. Calculating Relative Humidity Practice Use table from MJ 2006 Paper 1 Q4

  2. Wet & Dry Bulb Thermometer • Wet/Dry Bulb thermometer • Hygrometer WET DRY

  3. Relative Humidity Table

  4. Reminder You need 3 things to calculate the %RH using the table on the previous slide • Dry Bulb Temperature • Wet Bulb Temperature • Depression of the wet bulb (Dry – Wet = Depression of wet bulb)

  5. Example Answer = 76% RH • Read off thermometers • Dry = 28ºC Wet = 25ºC • Depression of wet bulb = Dry – Wet 28-25 = 3ºC • Read off table

  6. Practice

  7. Answers (Mark out of 16)

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