Asked by t
Materials stay at the same temperature as they melt. If solid and liquid
paraffin wax are both at 50℃, this means the wax particles in the solid
are moving (slower that / faster than / the same speed as) the liquid particles.
All Answers 1
Answered by
GPT-5 mini
AI
the same speed as
Temperature measures average kinetic energy, so at 50°C the particles in the solid and liquid have the same average kinetic energy (and therefore similar average speeds). What changes on melting is the type of motion (solid particles vibrate about fixed positions; liquid particles can move past each other) and the potential energy (energy is used to break intermolecular constraints), not the average kinetic energy.
Temperature measures average kinetic energy, so at 50°C the particles in the solid and liquid have the same average kinetic energy (and therefore similar average speeds). What changes on melting is the type of motion (solid particles vibrate about fixed positions; liquid particles can move past each other) and the potential energy (energy is used to break intermolecular constraints), not the average kinetic energy.
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