A.equal to the gross heat of combustion of the hydrocarbon fuels
B.greater than the gross heat of combustion of the hydrocarbon fuels
C.equal to the gross heat of combustion minus the latent heat of condensation of the water formed during the combustion reaction
D.equal to the latent heat of condensation of the water formed during the combustion reaction.
A.Hydrogen
B.Methane
C.Ethane
D.Butane
A.hydrogen
B.LPG
C.Natural gas
D.carbon
A.their oxidation reactions are endothermic
B.they produce large volumes of gases
C.their oxidation processes are exothermic
D.none of the above
A.21% oxygen and 79% nitrogen by volume
B.21% oxygen and 79% nitrogen by weight
C.79% oxygen and 21% nitrogen by volume
D.79% oxygen and 21% nitrogen by weight
A.CO2 only
B.O2 only
C.CO only
D.CO2 O2 and CO
A.CO2
B.O2
C.N2
D.CO
A.equal to that of gas flames
B.higher than that of gas flames
C.lower than that of gas flames
A.an endothermic reaction
B.an exothermic reaction
C.an autocatalytic reaction
D.a photochemical reaction
A.CO2 as well as CO
B.CO2 as well as O2
C.CO2 CO and O2
D.CO as well as O2
