Isobaric Process
A process carried out at constant pressure.
Formula / equation
q_p = ΔH
Unit
J
In depth
Nearly all laboratory chemistry is isobaric, since reactions in open vessels stay at atmospheric pressure. Under these conditions the heat exchanged is exactly the enthalpy change, which is the historical reason enthalpy was defined in the first place.
Examples in the real world
Heating water in an open pan; any reaction in an unstoppered flask on the bench.