First Post Here – Does everything in life excrete a gas? When you think about the act of ‘smelling’ something, you’re usually not physically touching your nose to it. Does this mean everything that smells like anything in life technically lets off a gas?

Question

First Post Here – Does everything in life excrete a gas? When you think about the act of ‘smelling’ something, you’re usually not physically touching your nose to it. Does this mean everything that smells like anything in life technically lets off a gas?

In: 71

Answer 1

Well yes, at least anything liquid has vapor pressure, some of it just floats off with atmosphere. Solids much less so, even then some atoms getting loose and floating off still happens.