Problem: The enthalpy of combustion of acetylene C 2H2 is described byC2H2 (g) + (5/2)O2 (g) ⇌ CO2 (g) + H2O (l)   Heat of Reaction (Rxn) = -1299kJ/molCalculate the enthalpy of formation of accetylene, given the following enthalpies of formation:Standard formation [CO2 (g)] = -393.5 kJ/molStandard formation [H2O (l)] = -285.8 kj/mol

FREE Expert Solution
88% (340 ratings)
Problem Details

The enthalpy of combustion of acetylene C 2H2 is described by

C2H2 (g) + (5/2)O2 (g) ⇌ CO2 (g) + H2O (l)   Heat of Reaction (Rxn) = -1299kJ/mol

Calculate the enthalpy of formation of accetylene, given the following enthalpies of formation:

Standard formation [CO2 (g)] = -393.5 kJ/mol

Standard formation [H2O (l)] = -285.8 kj/mol

Frequently Asked Questions

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 Enthalpy of Formation concept. You can view video lessons to learn Enthalpy of Formation. Or if you need more Enthalpy of Formation practice, you can also practice Enthalpy of Formation practice problems.

What is the difficulty of this problem?

Our tutors rated the difficulty ofThe enthalpy of combustion of acetylene C 2H2 is described b...as medium difficulty.

How long does this problem take to solve?

Our expert Chemistry tutor, Sabrina took 7 minutes and 6 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 Bindell's class at UCF.