using the standard enthalpies of formation, what is the standard enthalpy of reaction? CO(g) +H2O(g) =CO2...

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using the standard enthalpies of formation, what is the standard enthalpy of reaction? CO(g) +H2O(g) =CO2...

using the standard enthalpies of formation, what is the standard enthalpy of reaction? CO(g) +H2O(g) =CO2 (g) + H2 (g)

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Answer 1

Answer #1

Concepts and reason

The standard enthalpy of formation:

It is the enthalpy change when one mole of a substance is formed from its pure elements under standard conditions.

Fundamentals

The formula to calculate standard enthalpy of formation is given below:

AH® reaction = AH, (products) - AH®, (reactants)
Where,
Standard change in enthalpy of reaction=AHronction
Standard change in

The balanced chemical equation is as follows:

CO(g) + H2O(g)
CO2(g) + H, (g)

The formation values are as follows:

ΔΗ, (co(g)) = -110.525KJ/mol
ΔΗ°(Co, (g)) = -393.509KJ/mol
ΔΗ”, (H,0(g)) = - 241.818KJ/mol
ΔΗ°, (Η, (g)) = 0

AH® reaction = { $H”, (products) - 4H®, (reactants)
AHreaction = [AH, (C02 (8)) +AH°, (H2 (8))]-[AH, (CO()) +AH”, (H40())]

= (-393.509+352.343)KJ/mol
= -41.166KJ/mol

Ans:

The standard enthalpy of reaction is -41.166KJ/mol.

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Answer 2

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