Question

Given the following reactions and subsequent ∆H values, what is the ∆H for the reaction below? 4CO2(g) + 2H2O(g) 2C2H2(g) + 5O2(g)

Answer 1

To find the ΔH for the given reaction, we can use Hess's Law and write two equations that can be combined to give the desired equation.

Step-by-step explanation:

Given the reactions and their respective ΔH values, we can use Hess's Law to find the ΔH for the given reaction. One way to do this is by writing two equations that can be added together to give the desired equation. Observing that CO, a reactant in Equation 3, is a product in Equation 1, we can reverse Equation 1 and use Equation 2 as written. By adding the equations and their respective ΔH values, we can determine the ΔH for the given reaction.

Answer 2

The problem ask on which of the following reactions and subsequent values and the value is given on you question. Base on your data and also to my formulation, solution and further simplification about the problem and the given values, i came up with an answer of ∆Hrxn = 5∆Hf(O2(g)) + 2∆Hf(C2H2(g)) - 2∆Hf(H2O(g)) - 4∆Hf(CO2(g)).