Lithetha ukuthini iNqanaba lokuQothulwa kobungqina be-ABC

I “abc” imele ukuhlelwa kwegesi, Ihlelwe ngamanqanaba amathathu-IIA, Ib, kunye ne-IIC-ngokwe-gap ephezulu yovavanyo olukhuselekileyo (MESG) okanye umsinga wokulayita ubuncinci (I-MIC).

Udidi lwemeko	Ukuhlelwa kwegesi	Iigesi ezimele	Ubuncinci beNtlantsi yokuLawula amandla
Ngaphantsi koMgodi	I	IMethane	0.280mJ
Iifektri eziNgaphandle koMgodi	IIA	Ipropane	0.180mJ
	Ib	Ethylene	0.060mJ
	IIC	Ihydrogen	0.019mJ

Kwezi, ulwahlulo lwe-IIC luthathwa njengolona luyingozi kakhulu, kunye ne-IIB kunye ne-IIA elandela ngokunciphisa ulandelelwano lomngcipheko. Iigesi eziwela phantsi kokuhlelwa kwe-IIC ziquka i-hydrogen, iacetylene, carbon disulfide, i-ethyl nitrate, kunye negesi yamanzi. Ezo zikudidi lwe-IIB ziquka i-ethylene, igesi ye-oven ye-coke, ipropyne, kwaye ihydrogen i-sulfide. Ukuhlelwa kwe-IIA kubandakanya iigesi ezifana ne-methane, ethane, benzene, kwaye idizili.