Determine the enthalpy for this reaction: Express your answer in kilojoules per mole to one decimal place. Ca(OH)2 (s) + CO2(g) →CaCO3 (s) + H₂O(1)

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Chapter1: Chemical Foundations
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Pls help ASAP. Pls give proper units and significant digits to three. Pls circle the final answer as well. 

Determine the enthalpy for this reaction:
Express your answer in kilojoules per mole to one decimal place.
Ca(OH)2 (s) + CO2(g) →CaCO3 (s) + H₂O(1)
Transcribed Image Text:Determine the enthalpy for this reaction: Express your answer in kilojoules per mole to one decimal place. Ca(OH)2 (s) + CO2(g) →CaCO3 (s) + H₂O(1)
Enthalpy H is a measure of the energy content of a
system at constant pressure. Chemical reactions
involve changes in enthalpy, AH, which can be
measured and calculated:
ΔΗ,xn° = Σproducts mΔΗ;° - Σreactants nΔΗ,°
where the subscript "rxn" is for "enthalpy of reaction"
and "f" is for "enthalpy of formation" and m and n
represent the appropriate stoichiometric coefficients for
each substance.
The following table lists some enthalpy of formation
values for selected substances.
Substance
AHfᵒ (kJ/mol)
CO₂(g)
-393.5
Ca(OH)2 (s)
-986.1
H₂O(1)
-285.8
CaCO3(s)
-1207.0
H₂O(g)
-241.8
Transcribed Image Text:Enthalpy H is a measure of the energy content of a system at constant pressure. Chemical reactions involve changes in enthalpy, AH, which can be measured and calculated: ΔΗ,xn° = Σproducts mΔΗ;° - Σreactants nΔΗ,° where the subscript "rxn" is for "enthalpy of reaction" and "f" is for "enthalpy of formation" and m and n represent the appropriate stoichiometric coefficients for each substance. The following table lists some enthalpy of formation values for selected substances. Substance AHfᵒ (kJ/mol) CO₂(g) -393.5 Ca(OH)2 (s) -986.1 H₂O(1) -285.8 CaCO3(s) -1207.0 H₂O(g) -241.8
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