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Homework Help: Need help designing a lab to calculate delta H?

  1. May 19, 2009 #1
    1. The problem statement, all variables and given/known data
    I have to design a lab to calculate the delta H value of the enthalpy change of ice to liquid water. It has to stay at 0*C

    2. Relevant equations
    Needs to be in lab format but possible q=n(delta H) where n is the molarity

    3. The attempt at a solution
    I know the energy need to melt one mole of water is 6.02 KJ (oh so my Chem teacher tells me). I know that the energy need to heat up water increases until it hits 0*C then it plateaus until all the ice has melted, then it starts to increase again. What I'm not sure of is how to prove that the energy need is 6.02 KJ per mole.
  2. jcsd
  3. May 20, 2009 #2


    User Avatar

    Staff: Mentor

    What will happen if you mix known mass of water of known temperature with known mass of ice? What are possible outcomes? Which ones fit your problem?
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