- #1

miniradman

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## Homework Statement

Moist air at 32 degrees C has a dew point of 26 degrees C. The total or atmospheric pressure

is 100.7kPa.

find the:

Molal Humidity

Relative Humidity

## Homework Equations

Molal Humidity = [itex]\frac{P_{i}}{P_{tot} - P_{i}}[/itex]

Relative Humidity = [itex]\frac{P_{i}}{P_{vap}}[/itex]

## The Attempt at a Solution

I'm thinking I can simply sub in the vapour pressure for the dew point (looking at a pressure table) straight in as the partial pressure for molal humidity.

I got an answer of 3.45%, using equation for molal humidity. I have no answers for this particular question, so I'm not sure if this is correct.