# Problem: The combustion reaction of butane is as follows. C4H10(g) + 13/2 O2(g) → 4 CO2(g) + 5 H2O(l) Using Hess's law and the reaction enthalpies given below, find the change in enthalpy for this reaction. reaction (1):    C(s) + O2(g) → CO2(g)                               ΔH = -393.5 kJ/mol reaction (2):   H2(g) + 1/2 O2(g) → H2O(I)                        ΔH = -285.8 kJ/mol reaction (3):   4C(s) + 5H2(g) → C4H10 (g)                       ΔH = -125.7 kJ/mol

###### FREE Expert Solution
98% (256 ratings)
###### FREE Expert Solution
98% (256 ratings)
###### Problem Details

The combustion reaction of butane is as follows.

C4H10(g) + 13/2 O2(g) → 4 CO2(g) + 5 H2O(l)

Using Hess's law and the reaction enthalpies given below, find the change in enthalpy for this reaction.

reaction (1):    C(s) + O2(g) → CO2(g)                               ΔH = -393.5 kJ/mol

reaction (2):   H2(g) + 1/2 O2(g) → H2O(I)                        ΔH = -285.8 kJ/mol

reaction (3):   4C(s) + 5H2(g) → C4H10 (g)                       ΔH = -125.7 kJ/mol

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Hess's Law concept. You can view video lessons to learn Hess's Law. Or if you need more Hess's Law practice, you can also practice Hess's Law practice problems.

What is the difficulty of this problem?

Our tutors rated the difficulty ofThe combustion reaction of butane is as follows. C4H10(g) + ...as medium difficulty.

How long does this problem take to solve?

Our expert Chemistry tutor, Dasha took 9 minutes and 7 seconds to solve this problem. You can follow their steps in the video explanation above.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Dixon's class at UCF.