What is ΔrH∘ for the following chemical reaction?

Question

CS2(g)+2H2O(l)→CO2(g)+2H2S(g)

You can use the following table of standard heats of formation (ΔfH∘)(Δf�∘) to calculate the enthalpy of the given reaction.

Express the standard enthalpy of reaction to three significant figures and include the appropriate units.

Answer 1

So, you didn't include any of the data from the table of standard heats of formation, so we can't really answer the question. But the following describes the method to use to answer the question.

Use the table to find the values and plug in to the following:

(1). ∆Hºf CO2(g) + 2 x ∆Hºf H2S(g) = ∆Hºf of the products

(2). ∆Hºf CS2(g) + 2 x ∆Hºf H2O(l) = ∆Hºf of the reactants

∆rH = ∆Hºf of the products - ∆Hºf of the reactants