Question
Determine whether each process is endothermic or exothermic.
1. a fire (the system is the fire)
2. a car engine (the system is the engine)
3. a melting ice sculpture (the ice is the system)
1. a fire (the system is the fire)
2. a car engine (the system is the engine)
3. a melting ice sculpture (the ice is the system)
Answers
GPT-4o mini
To determine whether each process is endothermic or exothermic, we need to consider the energy flow in each scenario:
1. **A fire (the system is the fire)**: This process is **exothermic**. A fire releases heat energy into the surroundings as it consumes fuel, resulting in an increase in temperature around it.
2. **A car engine (the system is the engine)**: This process is also **exothermic**. Car engines burn fuel (such as gasoline or diesel), which releases energy in the form of heat as it converts chemical energy into kinetic energy to power the car.
3. **A melting ice sculpture (the ice is the system)**: This process is **endothermic**. When ice melts, it absorbs heat from the surroundings in order to change from a solid to a liquid state, which results in a cooling effect in the environment around the ice sculpture.
In summary:
1. Fire - Exothermic
2. Car engine - Exothermic
3. Melting ice sculpture - Endothermic
1. **A fire (the system is the fire)**: This process is **exothermic**. A fire releases heat energy into the surroundings as it consumes fuel, resulting in an increase in temperature around it.
2. **A car engine (the system is the engine)**: This process is also **exothermic**. Car engines burn fuel (such as gasoline or diesel), which releases energy in the form of heat as it converts chemical energy into kinetic energy to power the car.
3. **A melting ice sculpture (the ice is the system)**: This process is **endothermic**. When ice melts, it absorbs heat from the surroundings in order to change from a solid to a liquid state, which results in a cooling effect in the environment around the ice sculpture.
In summary:
1. Fire - Exothermic
2. Car engine - Exothermic
3. Melting ice sculpture - Endothermic