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The concentration of HCFC-142b in the atmosphere grew to over 20 parts per trillion by year 2010. [10] It has an ozone depletion potential (ODP) of 0.07. [ 11 ] This is low compared to the ODP=1 of trichlorofluoromethane (CFC-11, R-11), which also grew about ten times more abundant in the atmosphere by year 1985 (prior to introduction of HCFC ...
In video games using procedural world generation, the map seed is a (relatively) short number or text string which is used to procedurally create the game world ("map"). "). This means that while the seed-unique generated map may be many megabytes in size (often generated incrementally and virtually unlimited in potential size), it is possible to reset to the unmodified map, or the unmodified ...
Dichlorodifluoromethane (R-12) is a colorless gas popularly known by the genericized brand name Freon (as Freon-12). It is a chlorofluorocarbon halomethane (CFC) used as a refrigerant and aerosol spray propellant .
Freon-12, for example, indicates a methane derivative (only two numbers) containing two fluorine atoms (the second 2) and no hydrogen (1-1=0). It is therefore CCl 2 F 2. [8] Another equation that can be applied to get the correct molecular formula of the CFC/R/Freon class compounds is to take the numbering and add 90 to it.
Dichlorofluoromethane or Freon 21 or R 21 is a halomethane or hydrochlorofluorocarbon with the formula CHCl 2 F. It is a colorless and odorless gas. It is a colorless and odorless gas. It is produced by fluorination of chloroform using a catalyst such as antimony trifluoride : [ 4 ]
Some games that have appeared in Microsoft Entertainment Pack and Microsoft Plus! have been included in subsequent versions of Windows as well. Microsoft Solitaire has been included in every version of Windows since Windows 3.0, except Windows 8 and 8.1. The latest version of Windows, Windows 11, includes Microsoft Solitaire Collection and Surf.
2017–10: Windows 10 Fall Creators Update Windows 10 Mobile Fall Creators Update Windows Server 2016 Fall Creators Update : iOS 11.1 watchOS 4.1 tvOS11.1: OpenBSD 6.2 DragonFly BSD 5.0: Ubuntu 17.10: 2017–11: Linux 4.14 Fedora Linux 27: BareMetal 1.0.0 2017–12: iOS 11.2 watchOS 4.2 tvOS11.2: Android 8.1: ReactOS 0.4.7 2018–01: Linux 4.15 ...
The table is sortable by each of the following refrigerant properties (scroll right or reduce magnification to view more properties): Type/prefix (see legends); ASHRAE number