Physiology

Overview

Engineering reference data for Physiology in chemistry.

Key Formulas

Ideal Gas Law

$PV = nRT$

Pressure × Volume = moles × gas constant × temperature.

Molarity

$M = \frac{n}{V}$

Moles of solute per liter of solution.

pH

$pH = -\log_{10}[H^+]$

Measure of acidity.

Variables

Additional Concepts

Predicted Mean Vote (PMV) Index: This is a thermal comfort index that predicts the mean comfort response of a large group of people on a scale from -3 (cold) to +3 (hot). It is calculated using factors like metabolic rate, clothing insulation, air temperature, radiant temperature, air speed, and humidity.

Wet Bulb Globe Temperature (WBGT): This is a composite index used to assess heat stress in occupational or athletic settings. It combines the effects of temperature, humidity, wind speed, and solar radiation into a single value, providing a measure of the general heat-stress risk.

Metabolic Rate (Met): The "met" is a unit used to express the metabolic rate of a human body, representing heat production. 1 met is equal to 58.2 W/m² of body surface area, which is the metabolic rate of a seated, resting person.

Clothing Thermal Insulation (Clo): The "clo" unit is a measure of the thermal insulation provided by clothing and its ability to resist heat loss from the body. 1 clo is approximately equal to the insulation provided by typical indoor business clothing.

References

• Original Source