Recent content by Ariel Jo

  1. Ariel Jo

    Supercooled steam: finding final temperature, condensation fraction and entropy change

    q(gained by water)=q(lost by steam), and at constant pressure this would be q=n*Cp*deltaT for both substances. Setting them equal to each other would give moles of each, but there are no calculations to get 100degC as the equilibrium temp, just the (seemingly sound, but I'm not a physics...
  2. Ariel Jo

    Supercooled steam: finding final temperature, condensation fraction and entropy change

    Homework Statement You have 0.50 mol of steam which has been supercooled to 95˚C at 1 atm. Since the steam is below the boiling/condensation point, it proceeds to partially condense into liquid water. This happens in a thermally-insulated vessel at constant pressure. (a) When the system...
  3. Ariel Jo

    Calculate ΔH° and ΔE° for CH3OH decomposition at 298K

    Would it look something like: ΔH500=ΔHo+(500-298)*___kJ/mol*___mol for each component of the reaction? Where ___kJ/mol is the molar heat capacity at constant pressure, and ___mol is the quantity of substance
  4. Ariel Jo

    Calculate ΔH° and ΔE° for CH3OH decomposition at 298K

    Yup! The sum of the state functions of the products minus the sum of the state functions of the reactants is equal to the sum of the state function of the reaction; change in enthalpy is a state function, so it applies here.
  5. Ariel Jo

    Calculate ΔH° and ΔE° for CH3OH decomposition at 298K

    Thank you! I will try the enthalpy=energy+pv equation. in (c) it was meant to be delta H, I've edited it so it should appear now.
  6. Ariel Jo

    Calculate ΔH° and ΔE° for CH3OH decomposition at 298K

    Homework Statement For the reaction CH3OH(l) → CH4 (g)+ 1/2 O2 (g)[/B] (a) Calculate ∆Ho298 (b) Calculate ∆Eo298 (c) Write an equation that would allow you to determine ∆H at 500°C and 1atm Homework Equations ∆H=∆E+∆(PV) ∆H=Σ∆Hproducts-Σ∆Hreactants The Attempt at a Solution a)...