Question

If this plastic cup is heated to its melting
point, what will eventually happen to all
the particles in the plastic?
A. The particles will begin to move enough
that they slide past each other.

B. Bonds will form and the liquid will become
a solid.

C. The spaces between the particles will get
smaller.

D. The particles will change state and become
a crystalline solid.

Answer 1

Answer:

A. The particles will begin to move enough

that they slide past each other.

Explanation:

When the plastic cup is heated, the Kinetic energy of its particles starts increasing. As the temperature rises, the kinetic energy keeps increasing. With the increase of K.E, the particles start moving faster and faster. When the temperature finally reaches the melting point, the K.E of the molecules is enough to break the bonds and slide past each other.