Final answer:
The pyrolysis occurring due to a space heater 'cooking' a nearby chair is smoldering pyrolysis.
Step-by-step explanation:
The type of pyrolysis occurring due to a space heater 'cooking' a nearby chair is smoldering pyrolysis.
In smoldering pyrolysis, the fuel undergoes a slow, flameless combustion process due to limited oxygen supply. It produces smoke and glowing embers, and it can occur in materials like wood or fabric.
Unlike oxidative or combustion pyrolysis, smoldering pyrolysis does not involve a rapid reaction with abundant oxygen, but rather a slower, oxygen-limited process.