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

Frequently Asked Questions

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 .

What is the difficulty of this problem?

Our tutors rated the difficulty of Determine the enthalpy for this reaction:Ca(OH)2(s) + CO2(g)... as medium difficulty.

How long does this problem take to solve?

Our expert Chemistry tutor, Sabrina took 4 minutes to solve this problem. You can follow their steps in the video explanation above.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Dixon's class at UCF.