- #1

Karol

- 1,380

- 22

## Homework Statement

Room temperature is 20

^{0}C and relative humidity is 60%. what is the absolute moisture

## Homework Equations

Vapor pressure at 20

^{0}C=17.5[atm]

PV=nRT

Molecular weight of water=18[gr/mol]

## The Attempt at a Solution

The vapor pressure at 20

^{0}C:

$$\frac{x}{17.5}=0.6\rightarrow x=10.5[atm]$$

$$PV=nRT\rightarrow 10.5\cdot 1=n\cdot 0.08208\cdot 293\rightarrow n=0.437[mol]$$

$$0.437\cdot 18=7.86[\frac{gr}{m^3}]$$

It should be 10[gr/m

^{3}]