   Chapter 5, Problem 21P

Chapter
Section
Textbook Problem

. Inside a building, the temperature is 20°C, and the relative humility is 40 percent. How much water vapor is there in each cubic inner of air?

To determine

Inside a building, the temperature is 20°C, and the relative humidity is 40 percent. How much water vapor is there in each cubic meter of air?

Explanation

Given:

Temperature, T=200C

Relative humidity = 40%.

Formula used:

Relative Humidity is the humidity expressed as a percentage of saturation density. Mathematically it is given by

relative humidity=humiditysaturation density×100%.

Amount of water vapor present in each cubic meter of air implies absolute humidity which can be found as

humidity=relative humidity100×saturation density

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