An example is radon (Rn).
plasma!
when the refrigerant passes through the metering device, some of it starts to flash from a liquid to a gas because
when the refrigerant passes through the metering device, some of it starts to flash from a liquid to a gas because
Both volume (V) and quantity (n) of the gas have to be known to calculate, not only the pressure by Gas Law: p . V = n . T . (R) in which (R) is the general 'gas constante': 8.3145 (J/mol.K)
the ideal gas constant D:
The smell from a gas leak reeks. The adjective begins with the letter r.
his name is Robert
Rush is a rock group that starts with "R".
Russia
Ryou.
Razor
Reah
ramhadanna
Their is not another name for HIV that starts with an R. That said, HIV is a type of retrovirus. That is probably the word you are looking for.
Ethane.
methane
Fumes are a synonym for gas.