Before ignition, which type of fuel must undergo pyrolysis?

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Multiple Choice

Before ignition, which type of fuel must undergo pyrolysis?

Pyrolysis is the thermal decomposition of a solid fuel into volatile gases before it can burn. In firefighting terms, solid fuels like wood or coal must first heat up and break down into flammable gases. Those gases then mix with oxygen and ignite, driving the flame. Liquid fuels tend to vaporize into vapors rather than pyrolyze into gases, and gaseous fuels are already in the gas phase, so they ignite without a pyrolysis step. Aqueous mixtures don’t burn as fuels. So the solid fuel is the one that must undergo pyrolysis before ignition.

Pyrolysis is the thermal decomposition of a solid fuel into volatile gases before it can burn. In firefighting terms, solid fuels like wood or coal must first heat up and break down into flammable gases. Those gases then mix with oxygen and ignite, driving the flame. Liquid fuels tend to vaporize into vapors rather than pyrolyze into gases, and gaseous fuels are already in the gas phase, so they ignite without a pyrolysis step. Aqueous mixtures don’t burn as fuels. So the solid fuel is the one that must undergo pyrolysis before ignition.

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