Question

1-UULUU ced equation for complete combustion of the following hydrocarbons: 3. Write a balanced equation for complete co a. butane b. cyclohexane

Answer 1

Answer-

Complete combustion of Hydrocarbons occurs in the presence of O₂ and produced CO₂ and H₂O.

a) Butane (C₄H₁₀)

C₄H₁₀ + O₂  $\rightarrow$  CO_{2 +} H₂O

Balance the reaction by making stiochiometric coefficients of each elements equal on both side.

before balancing-

	LHS	RHS
C	4	1
H	10	2
O	2	3

2 C₄H₁₀ + `13 O₂  $\rightarrow$ 8 CO₂ + 10 H₂O [Balanced]

after balancing-

	LHS	RHS
C	8	8
H	20	20
O	26	26

2 C₄H₁₀ + `13 O₂  $\rightarrow$ 8 CO₂ + 10 H₂O [ANSWER]

b) Cyclohexane (C₆H₁₂)

C₆H₁₂ + O₂  $\rightarrow$  CO_{2 +} H₂O

Balance the reaction by making stiochiometric coefficients of each elements equal on both side.

before balancing-

	LHS	RHS
C	6	1
H	12	2
O	2	3

C₆H₁₂ + 9 O₂  $\rightarrow$ 6 CO_{2 +} 6 H₂O [Balanced]

after balancing-

	LHS	RHS
C	6	6
H	12	12
O	18	18

C₆H₁₂ + 9 O₂  $\rightarrow$ 6 CO_{2 +} 6 H₂O [ANSWER]