hot coffee in a mug cools over time and the mug warms up. which describes the energy in this system?\nthe…
hot coffee in a mug cools over time and the mug warms up. which describes the energy in this system?\nthe average kinetic energy of the particles in the mug decreases.\nthe average kinetic energy of the particles in the coffee increases.\nthermal energy from the mug is transferred to the coffee.\nthermal energy from the coffee is transferred to the mug.
Answer
Brief Explanations:
- When hot coffee cools, its thermal energy (related to the average kinetic energy of its particles) decreases.
- The mug warms up, meaning it gains thermal energy.
- Thermal energy is transferred from the hotter object (coffee) to the cooler object (mug).
- The average kinetic energy of the coffee particles decreases (so the option about coffee particles' average kinetic energy increasing is wrong).
- The mug warms up, so the average kinetic energy of its particles increases (so the option about mug particles' average kinetic energy decreasing is wrong).
- Thermal energy is transferred from coffee to mug, not the other way around (so the option about thermal energy from mug to coffee is wrong).
Answer:
Thermal energy from the coffee is transferred to the mug.