The table below shows Hvalues for 3 reactions.Which reaction has Hrxn equal to Hf? Explain.How much energy would be released by the combustion of 100.0 grams C2H2(g)? Calculate the ΔHrxn for the reaction C2H2(g) → 2C(s) + H2(g). ReactionAH,rxnC,H,(g) + 5/2 O,(g) → 2CO,(g) + H,0(1)-1300.0 kJ/molC(s) + O,(g) → CO,(g)-393.5 kJ/mol2H,(9) + O,(g) -→ 2H,0()-572.0 kJ/mol

Enthalpy of Reaction (∆Hrxn):- It is the energy change which occurs during a reaction. Enthalpy of…

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Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter12: Gaseous Chemical Equilibrium

Section: Chapter Questions

Problem 57QAP: For the following reaction C(s)+2H2(g)CH4(g) K=0.26 at 1000C (3 significant figures). What is the...

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The table below shows Hvalues for 3 reactions.

Which reaction has Hrxn equal to Hf? Explain.
How much energy would be released by the combustion of 100.0 grams C2H2(g)?
Calculate the ΔHrxn for the reaction C2H2(g) → 2C(s) + H2(g).

Reaction
AH,
rxn
C,H,(g) + 5/2 O,(g) → 2CO,(g) + H,0(1)
-1300.0 kJ/mol
C(s) + O,(g) → CO,(g)
-393.5 kJ/mol
2H,(9) + O,(g) -→ 2H,0()
-572.0 kJ/mol

Expert Solution

Step 1

Enthalpy of Reaction ( $∆ H_{r x n}$ ):- It is the energy change which occurs during a reaction.
Enthalpy of Formation ( $∆ H_{f}$ ):- It is the enthalpy/ energy change during the formation of one mole of compound from it most stable common occurring form.

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