Thursday
March 23, 2017

Post a New Question

Posted by on Wednesday, February 29, 2012 at 8:48pm.

What is the reaction enthalpy for CaCO3(s) --> CaO(s) + CO2(g)?

should i be using a enthalpy reaction table?

  • Chemistry - Enthalpy reactions - , Wednesday, February 29, 2012 at 9:19pm

    Yes. Use the delta Ho formation tables.
    dHrxn = (n*dH products) - (n*dH reactants)

  • Chemistry - Enthalpy reactions - , Wednesday, February 29, 2012 at 9:50pm

    perfect, i got a positive 178.3 kj/mol, which makes since because CaCO3 releases a lot of energy when it breaks apart, so there was more energy released when breaking apart then needed to originally form CaCO3

    Thank you

  • Chemistry - Enthalpy reactions - , Wednesday, February 29, 2012 at 10:17pm

    Is that good? A +178.3 kJ for dHo means it is an endothermic reaction

  • Chemistry - Enthalpy reactions - , Monday, April 22, 2013 at 1:33pm

    2 NO + O2 -> 2NO2

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question