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--- science:gas [2026/09/02 12:47] – [Relative gas densities to air] gary1
+++ science:gas [2026/09/02 12:48] (current) – [Relative gas densities to air] gary1
@@ Line 51: / Line 51: @@
   *in general gas density rises in proportion to its molecular weight for the same temperature and pressure
   *the following assumes same temperature and pressure (except for the hot wood fire smoke which is compared to normal ambient air temperature)
-  *carbon monoxide, like smoke, coming from a stove or heater will initially rise hence smoke alarms and CO alarms should generally be mounted near a ceiling for the earliest warning, later both will mix with air as they cool to air temperatures and smoke may even sink
+  *hot carbon monoxide, like smoke, coming from a stove or heater will initially rise hence smoke alarms and CO alarms should generally be mounted near a ceiling for the earliest warning, later both will mix with air as they cool to air temperatures and smoke may even sink
   ***underground coal miners are at major risk from:**
     *pools of carbon dioxide ("black damp") as it forms from human respiration, the rotting of timber supports, or the slow oxidation of coal