Final answer:
The creation of products such as beer, wedding invitations, automobiles, paper, Big Macs, custom homes, and motorcycles involve various processes like fermentation, printing, automated assembly, cooking, and construction. For energy changes, water boiling is endothermic, while gasoline burning and ice forming are exothermic processes.
Step-by-step explanation:
The processes used for making various products can often be classified based on the nature of their chemical or physical changes. Here's how those processes might be classified:
- Beer is produced using a fermentation process, where yeast converts glucose into alcohol and carbon dioxide.
- Wedding invitations are typically made via printing or engraving, both of which are physical processes.
- Automobiles are manufactured using a highly automated assembly process involving both chemical (painting, rust-proofing) and physical (assembly, welding) processes.
- Paper is made through a series of physical and chemical processes including pulping, pressing, and drying of wood fibers.
- A Big Mac is prepared using cooking, which primarily involves the physical process of heating, but can also include chemical changes like Maillard reactions.
- Custom homes are built through a construction process, which is largely a series of physical changes (cutting, assembling, etc.).
- Motorcycles are manufactured in a way similar to automobiles, through a process that heavily involves assembly and manufacturing techniques.
When considering the energy changes involved in these processes:
- Water boiling is an endothermic process because it absorbs heat.
- Gasoline burning is an exothermic process as it releases heat.
- Ice forming on a pond is an exothermic process since it releases heat into the environment.