The phrase "active gas" is correct and usable in written English.
It can be used in scientific or technical contexts, particularly in discussions about chemistry or physics where gases are involved in reactions or processes.
Example: "The experiment required the use of an active gas to facilitate the reaction between the two compounds."
Alternatives: "reactive gas" or "dynamic gas".
Gas flow was continued for 20 minutes to insure active gas generation, then the reactor was closed and its contents allowed to stand for 200 hours at 200°C.
There we were, walking along an avenue when we saw a horrendous-looking hotel, right above a very active gas, or what Londoners call petrol, station.
That has not happened yet, although there are now 772 active gas rigs working in the United States, an increase of more than 50percentt from a year earlier, according to Baker Hughes Inc.
Even an urban area as densely populated as Arlington, the seventh-largest city in Texas and the location of the Dallas Cowboys and Texas Rangers sports stadiums, has 300 active gas wells.
The risks are particularly severe in Pennsylvania, which has seen a sharp increase in drilling, with roughly 71,000 active gas wells, up from about 36,000 in 2000.
However, since H2O is ubiquitous, occurring in its three phases (solid, liquid, and gas), and since CO2 is also a biogeochemically active gas, global temperature changes are both explained and predicted by changes in the atmospheric concentration of CO2.
The mayor urged residents in areas scheduled for evacuation to leave their homes immediately, and he said businesses in those neighborhoods should close up shop and turn off propane tanks and active gas lines.
Moreover, the carbon dioxide soil flux values were controlled in proximity of active gas-releasing fractures and in presence of changes in barometric pressure and soil permeability.
The hydrogenation of nitrobenzene to aniline has been performed using the catalytic membrane as an active gas-liquid contactor.
We also like niche player W-H Energy for its exposure to the active gas-prone Mid Continent and Southwest basins of the U.S. Independent refiners would benefit most from an oil price break, and Valero Energy is our favorite.
The greatly reduced marginal effectiveness is believed to be caused by loss of active gas-phase species to condensed-phase particles.
