ENTHALPY HELP URGENT PLEASEEEE (1 Viewer)

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What are the enthalpy for the following three equations, I need it urgently!!!

Dissolution: CO2(g) ⇌ CO2(aq)


Hydrolysis: CO2(aq) + H2O(l) ⇌ H2CO3(aq)

Ionisation: H2CO3(aq) ⇌ HCO3-(aq) + H+(aq)
 
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What are the enthalpy for the following three equations, I need it urgently!!!

Dissolution: CO2(g) ⇌ CO2(aq)


Hydrolysis: CO2(aq) + H2O(l) ⇌ H2CO3(aq)

Ionisation: H2CO3(aq) ⇌ HCO3-(aq) + H+(aq)
 

username_2

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Ok so for the dissolution , the standard enthalpy is -8.647 kJ mol-1 (source: carbon dioxide - data page wikipedia as enthalphy of dissolution is negative of enthalpy of fusion). For the other two i suggest search enthalpy for the carbonic acid equilibrium (as you are saying it is urgent) but if i find it I will post. :)
 

username_2

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Hydrolysis - +22.0 kJ mol-1
Ionisation - too tired but i found the enthalpy of formations for hco3 and h2co3 and h+ ion (enthalpy of dissolution for h(g)) so use the yr 11 stuff to find out
 
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Drdusk

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For future reference please post your questions in the relevant forum. This helps other students who may have the same kind problem and are looking for this thread.
 

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