Enthalpy?

Discussion in 'Community Discussion' started by Chubypig, Oct 22, 2006.

  1. Chubypig macrumors 6502

    Joined:
    Aug 30, 2004
    #1
    I'm working on a chemistry lab, and I'm trying to find the enthalpy in kJ/mol of NH4Cl (aq) I've searched google, and my text book to no avail. as a last hope, could any of you help me?
     
  2. Chubypig thread starter macrumors 6502

    Joined:
    Aug 30, 2004
  3. NJuul macrumors 6502

    Joined:
    Mar 15, 2006
    Location:
    Boston
    #3
    From what I remember from chemistry classes, the enthalpy of a system cannot be measured and thus what you are asking makes no sense. Only the change in enthalpy can be measured.
    If I remember correctly, the standard enthalpy change of a substance is the resulting change in enthalpy that from the formation of the substance from its constituents.
    A quick google revealed the standard enthalpy change of NH4Cl (s) to be -314.55 kJ/mol.
     

Share This Page