- #1
gunnar
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a gas is x ppm by volume
Liquids are mg/L
but what about the gas?
Liquids are mg/L
but what about the gas?
Ppm by volume (parts per million by volume) is a measure of the concentration of a gas in a mixture of gases. It represents the number of parts of a gas per million parts of the entire mixture by volume. Mg/L (milligrams per liter) is a measure of the mass of a gas in a liquid solution. It represents the number of milligrams of a gas per liter of the solution.
Both ppm by volume and mg/L are commonly used to measure gas concentration and can be accurate depending on the situation. Ppm by volume is more commonly used for gases in air or gas mixtures, while mg/L is more commonly used for gases dissolved in liquids. It is important to use the appropriate unit of measurement for the specific gas and solution being measured.
To convert ppm by volume to mg/L, you will need to know the molecular weight of the gas. You can then use the following formula: mg/L = (ppm by volume) x (molecular weight of gas) x (density of gas at standard temperature and pressure). It is important to note that the density of a gas can vary depending on temperature and pressure, so the conversion may not be exact.
Yes, there are other units that can be used to measure gas concentration, such as parts per billion (ppb), parts per trillion (ppt), and percentage by volume (% vol). The appropriate unit to use will depend on the concentration of the gas and the specific application.
In industrial settings, gas concentration is often measured using instruments such as gas detectors or gas analyzers. These instruments can measure gas concentration in various units, including ppm by volume and mg/L, and provide real-time readings for monitoring purposes. They are commonly used in industries such as oil and gas, chemical production, and mining.