Write balanced reactions for the completecombustion of hydrogen. Express your an

Question

Write balanced reactions for the completecombustion of hydrogen. Express your answer as a chemicalequation. Identify all of the phases in your answer.

Part B Use standard enthalpies of formation tocalculate the amount of heat released per kilogram of thefuel. Express your answer using foursignificant figures.












































Part C Write balanced reactions for the completecombustion of methanol. Express your answer as a chemicalequation. Identify all of the phases in your answer.
































Part D Use standard enthalpies of formation tocalculate the amount of heat released per kilogram of thefuel. Express your answer using foursignificant figures.












































Part E Which fuel contains the most energy in theleast mass?
Hydrogen Methanol


Hydrogen Methanol


Hydrogen Methanol


Hydrogen Methanol


Hydrogen Methanol


Hydrogen Methanol


Hydrogen Methanol


Hydrogen Methanol


Hydrogen Methanol


Hydrogen Methanol

Part F Express your answer using foursignificant figures.

Explanation / Answer

We Know that :     2 H2 (g) + O2 (g) ----------> 2 H2O (l)         Hrxn. = H (products) - H (reactants)                        = 2 ( -241.8 ) KJ - [ 2 (0) + 1 (0) ] KJ                         = 483.6 KJ for the combustion of 2 moles of H2           for 1kg of fuel it consist of 500 moles the amount of energyreleased is 483.6 x 500 moles / 2 mole                                                                                                                         = 120900KJ          2CH3OH (l) + 3 O2 (g) --------> 2 CO2 (g) + 2 H2O(l)                      Hydrogen produces more amount of energy with lesser mass of thefuel.          

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