shahidcade2721
11.12.2019 •
Chemistry
Reactant a contains 85.1 j of chemical energy. reactant b contains 87.9 j of chemical energy. product c contains 38.7 j of chemical energy. if the reaction absorbs 104.3 j of chemical energy as it proceeds, how much chemical energy must product d contain?
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Ответ:
238.6 J
Explanation:
1) Chemical energy is indicated as enthalpy
2) Energy balance:
∑ enthalpy of the reactants + energy added = ∑ enthalpy of the products + energy released.
3) ∑ enthalpy of the reactants = 85.1 J + 87.9 J = 173 J
4) energy added = 104.3 J
5) ∑ enthalpy of the products = 38.7 J + D
6) energy released = 0
7) Equation:
173J + 104.3J = 38.7 + D + 0
⇒ D = 173J + 104.3J - 38.7J = 238.6J, which is the chemical energy of the product D.
Ответ:
I would rather smash Beyonce
Explanation: