Question

In a chemistry experiment, the total energy contained in a system is 45 J. After the system undergoes a chemical reaction, the total energy in the system is 39 J. Which of the following statements is true?"

Option 1: Energy is conserved in the reaction.
Option 2: Energy is created in the reaction.
Option 3: Energy is destroyed in the reaction.
Option 4: Energy is transformed in the reaction.

Answer 1

Energy is conserved in the reaction.

Step-by-step explanation:

The correct statement in this case is option 1: Energy is conserved in the reaction. According to the law of conservation of energy, the total energy in a system remains constant before and after a chemical reaction. While the total energy in the system may change during the reaction, it is neither created nor destroyed. Instead, it is transformed from one form to another, such as heat or work.