3. Determine Ho/kJ for the following reaction using the listed enthalpies of reaction: N 2 H 4 (l) + 2 H 2 O 2 (g) N2(g) + 4 H2O(l) N2H4(l) + O2(g) N2(g) + 2 H2O(l) Ho/kJ = -622 kJ (1) H 2 (g) + 1/2 O 2 (g) H2O(l) Ho/kJ = -285 kJ (2) H 2 (g) + O 2 (g) H2O2(l) Ho/kJ = -187 kJ (-2) 818 kJ. 4. Calculate the value of Ho/kJ for the following ...

All standard enthalpies have the unit kJ/mol. As a brief reminder, here is the chemical reaction for the standard enthalpy of glucose: Each standard enthalpy value is associated with a chemical reaction. The reaction will always form one mole of the target substance (glucose in the example) in its standard state.

1) Determine what we must do to the three given equations to get our target equation: c) third eq: do nothing. We need one H 2 on the reactant side and that's what we have. 2) Rewrite all three equations with changes applied: Notice that the ΔH values changed as well. 3) Examine what cancels: 4) Add up ΔH values for our answer:

Germain Henri Hess, in 1840, discovered a very useful principle which is named for him: The enthalpy of a given chemical reaction is constant, regardless of the reaction happening in one step or many steps. Another way to state Hess' Law is:

Calculate the value of Ho/kJ for the following reaction using the listed thermochemical equations: .

2016年1月1日 · In Japan, by far the most popular creative problem-solving methodology using creative thinking is the KJ Ho method. This method puts unstructured information on a subject matter of interest into order through alternating divergent and convergent thinking steps.

2016年2月26日 · In Japan, by far the most popular creative problem-solving methodology using creative thinking is the KJ Ho method. This method puts unstructured information on a subject matter of interest...

Calculate the value of Ho/kJ for the following reaction using the listed thermochemical equations: 2. Given the following equations and Ho values, determine the heat of reaction (kJ) at 298 K for the reaction: 3. Calculate the heat of combustion (kJ) of propane, C3H8 using the listed standard enthapy of reaction data: 4.

Ho KJ, Master's Student of Tsinghua University, Beijing (TH) | Read 2 publications | Contact Ho KJ