Chapter 6, Problem 1E

Use Table 6-1 to find the saturation mixing ratio (ms) of air samples A and B.

A: ms = ________ g kg⁻¹

B: ms = ________ g kg⁻¹

To determine

The saturation mixing ratio of air Samples A and B using Table 6-1.

Answer to Problem 1E

Air Sample	A	B
Temperature	${10}^{\circ }\text{C}$	${38}^{\circ }\text{C}$
Relative humidity	75%	75%
Saturation mixing ratio	$\text{7}\text{.762}\text{g}{\text{kg}}^{-1}$	$\text{44}\text{.381}\text{g}{\text{kg}}^{-1}$

Explanation of Solution

The mixing of two air masses causes saturation. Generally, mixing involves a change in the amount of water vapor and temperature.

When temperature is given, then saturation mixing ratio can be determined easily from Table 6-1. At a temperature of ${10}^{\circ }\text{C}$, the saturation mixing ratio will be $\text{7}\text{.762}\text{g}{\text{kg}}^{-1}$, and at a temperature of ${38}^{\circ }\text{C}$, it will be $\text{44}\text{.381}\text{g}{\text{kg}}^{-1}$.