# Problem: Determine the enthalpy for this reaction:Ca(OH)2(s) + CO2(g) → CaCO3(s) + H2O(l)Enthalpy of formation for selected substances-CO2(g)                             ΔH   f∘= −393 kJ/molCa(OH)2(s)                      ΔH   f∘= −987 kJ/molH2O(l)                              ΔH   f∘= −286 kJ/molCaCO3(s)                        ΔH   f∘=  −1207 kJ/mol

###### FREE Expert Solution
83% (285 ratings)
###### FREE Expert Solution

We’re being asked to determine the standard enthalpy change (ΔH˚rxn) for the balanced reaction:

Ca(OH)2(s) + CO2(g)  CaCO3(s) + H2O(l)

Recall that ΔH˚rxn can be calculated from the enthalpy of formation (ΔH˚f) of the reactants and products involved: 83% (285 ratings) ###### Problem Details

Determine the enthalpy for this reaction:

Ca(OH)2(s) + CO2(g) → CaCO3(s) + H2O(l)

Enthalpy of formation for selected substances-

CO2(g)                             ΔH   f= −393 kJ/mol

Ca(OH)2(s)                      ΔH   f= −987 kJ/mol

H2O(l)                              ΔH   f= −286 kJ/mol

CaCO3(s)                        ΔH   f=  −1207 kJ/mol

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Enthalpy of Formation concept. You can view video lessons to learn Enthalpy of Formation. Or if you need more Enthalpy of Formation practice, you can also practice Enthalpy of Formation practice problems.

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