Calculating Relative Humidity at 60°F

AI Thread Summary
At 60°F, the maximum water vapor capacity is 5.8g/cubic foot. Given that the actual water vapor content is 4.8g/cubic foot, the new relative humidity can be calculated using the formula: (actual vapor content / max capacity) x 100. This results in a relative humidity of approximately 82.76%. Understanding the initial 60% relative humidity at 70°F helps in making the calculations easier. The discussion emphasizes the importance of knowing both temperature and water vapor capacity for accurate humidity calculations.
jxs919
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My brain is fried on other subjects. Help me!

Given: Max Water Vapor Capacity for Air @ 70 degrees F (21 deg. C)= 8g/cubic foot.

At 60% relative humidity, the actual water vapor content is 4.8g/cubic foot.

If the room temperature were lowered to 60 degrees F (16 deg. C) at which the max water vapor capacity is 5.8g/cubic foot, calculate the new relative humidity.


help me get started here...
 
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I would start by looking at where 60% (0.60) comes from -- then it will be easy to calculate from there.
 

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