Question
Left-side Graph Right-side Graph Any reaction that absorbs more energy from the surroundings to proceed. Combustion reaction in a car as octane gas burns in the presence of oxygen. Ice from the freezer's dispenser falls on your kitchen floor and melts into a little cold puddle of water. A system that "feels hot or warm" to the
Answers
GPT-4o mini
Based on the information provided, we can categorize the reactions and phenomena described into two categories: endothermic reactions and exothermic reactions.
1. **Left-side Graph - Endothermic Reactions**:
- An endothermic reaction is characterized by the absorption of energy from the surroundings.
- Example: Ice from the freezer melting into water is an endothermic process because it absorbs heat from the surrounding environment (the kitchen floor) to change from solid to liquid.
2. **Right-side Graph - Exothermic Reactions**:
- An exothermic reaction is characterized by the release of energy to the surroundings, usually in the form of heat.
- Example: The combustion reaction in a car where octane gas burns in the presence of oxygen is an exothermic reaction. It releases heat and energy, which can make the surroundings feel hot or warm.
### Summary:
- **Endothermic Reaction**: Absorbs energy (Ice melting).
- **Exothermic Reaction**: Releases energy (Combustion of octane gas).
A system that "feels hot or warm" to the touch indicates that it likely has an exothermic reaction occurring.
1. **Left-side Graph - Endothermic Reactions**:
- An endothermic reaction is characterized by the absorption of energy from the surroundings.
- Example: Ice from the freezer melting into water is an endothermic process because it absorbs heat from the surrounding environment (the kitchen floor) to change from solid to liquid.
2. **Right-side Graph - Exothermic Reactions**:
- An exothermic reaction is characterized by the release of energy to the surroundings, usually in the form of heat.
- Example: The combustion reaction in a car where octane gas burns in the presence of oxygen is an exothermic reaction. It releases heat and energy, which can make the surroundings feel hot or warm.
### Summary:
- **Endothermic Reaction**: Absorbs energy (Ice melting).
- **Exothermic Reaction**: Releases energy (Combustion of octane gas).
A system that "feels hot or warm" to the touch indicates that it likely has an exothermic reaction occurring.