If the absolute humidity is 0.03 The mass of moisture free air is 40g The mass of moisture is 10g What is the molal humidity?

If the absolute humidity is 0.03 The mass of moisture free air is 40g The mass of moisture is 10g What is the molal humidity? Correct Answer 0.12

Combining the formula of absolute humidity H= Mpa/Mb(p-pa) and molal humidity Hm=pa/p=pa, Hm= H*Ma/Mb=0.12.

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