which describes how fast - moving particles assist in transferring thermal energy to a cup after hot tea is…

which describes how fast - moving particles assist in transferring thermal energy to a cup after hot tea is poured into it?\nthey replace slow - moving particles.\nthey collide with slow - moving particles.\nthey collide with other fast - moving particles.\nthey are replaced by slow - moving particles.
Answer
Brief Explanations:
When hot tea (with fast - moving particles) is poured into a cup, thermal energy transfer occurs via particle collisions. According to the kinetic theory of matter, in the process of heat transfer (here, conduction within the cup material or between tea and cup), fast - moving particles (from the hot tea) collide with the slower - moving particles (in the cup material initially at a lower temperature). These collisions transfer kinetic energy (a form of thermal energy at the particle level) from the fast - moving to the slow - moving particles.
- Option 1: Particles don't "replace" each other in the sense of thermal energy transfer. Thermal energy transfer is about energy exchange, not particle substitution.
- Option 3: Colliding with other fast - moving particles (if we assume they are in the same high - temperature region like the tea itself) doesn't explain the transfer of thermal energy to the cup (which has slower - moving particles initially).
- Option 4: Again, it's not about replacement of particles for thermal energy transfer to the cup.
Answer:
They collide with slow - moving particles.