Asked by Rainey
Given: CH4 + 2O2 ~ CO2 + 2H2O
C - H = 99 kcal O - O = 119 kcal
C = O = 192 kcal O - H = 111 kcal
Calculate the change in energy for the CH4 - O2 system.
C - H = 99 kcal O - O = 119 kcal
C = O = 192 kcal O - H = 111 kcal
Calculate the change in energy for the CH4 - O2 system.
Answers
Answered by
DrBob222
dHrxn = (n*BE reactants) - (n*BE products).
BE = bond energy.
For example You have broken 4 C-H bonds so that is 4*99 = ? kcal.
You have broken 2*119 O bonds = ? kcal
you have formed two C-O bonds for CO2
etc.
BE = bond energy.
For example You have broken 4 C-H bonds so that is 4*99 = ? kcal.
You have broken 2*119 O bonds = ? kcal
you have formed two C-O bonds for CO2
etc.
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