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Mia/Bruno U9 (Energy Basics: (Energy: the ability to produce heat (Kinetic…

- - - - Example: A ball rolling down a hill has kinetic energy.
    - - Example: A ball sitting at the top of a hill has potential energy
    - - Example: A race-car can accelerate due to chemical potential energy in its fuel.
  - - - In endothermic reactions heat moves from the surroundings to the system.
      - In endothermic reactions heat moves from the system to surrounding.
- - - - Example: The temperature of 10.0 grams of water increases by 100. degrees Celsius. Assuming the specific heat of water is 4.2 J/g·°C, what was the change in heat energy? q=mc∆T --> q=(10. g)(100.0 °C)(4.2 J/g·°C) --> q= 4200