Question

On a winters day in Boston I left a cup of coffee in my car, where it froze. When I remembered my coffee, I brought it inside and used a microwave to heat it back up to 80°C so I could drink it. Consider an energy-interaction model for the physical system consisting of the cup and the coffee. What energy systems are changing from the time the microwave is turned on to the time it stops? Ebond, coffee Ebond, coffee, Ethermal, coffee Ethermal, coffee, Ethermal, cup Ebond, coffee, Ethermal, coffee, Ethermal, cup. Ebond, cup Ebond, coffee, Ethermal, coffee, Ethermal, cup

Answer 1

E_thermal coffee, E_thermal cup. {energy interaction takes place in the form of heat between coffee and cup only and there is no bond energy associated with it.}