Consider the following generic chemical equation:

A + B → C + D

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? Explain your answer.

Question

Ashley Fry

Chemistry

2 January, 16:21

Consider the following generic chemical equation:

A + B → C + D

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? Explain your answer.

+4

Answers (1)

Know the Answer?

Nakita · Answer 1

With the given equation, we could say that each mole A or B can produce 1 mole of C and D. To solve this we can represent this problem algebraically as follows:

(38.7+x) - (87.9+85.1) = - 104.3J

where x is the amount of energy that D possesses. Solve x and you shoudl get 31 J.