Question

Define the system and surroundings for the reaction of the decomposition of H₂O₂. If water is one of the products, does it belong to the system or surroundings?

a. The system includes H₂O₂, and water belongs to the surroundings.
b. The system includes H₂O₂ and water.
c. The system includes water, and H₂O₂ belongs to the surroundings.
d. The system and surroundings both include water.

Answer 1

The system refers to the specific portion of matter being studied, while the surroundings include everything else in the universe. In the case of the decomposition of H₂O₂, the system includes H₂O₂ itself.

Step-by-step explanation:

The system refers to the specific portion of matter being studied during an experiment, while the surroundings include everything in the universe that is not part of the system. In the case of the decomposition of H₂O₂, the system includes H₂O₂ itself, as it is the substance undergoing the reaction. Therefore, option a is correct.