Question

Consider the heating curve. In which region are most particles moving the fastest?
A) 2
B) 3
C) 4
D) 5

Answer 1

The particles are moving fastest in Region D) 5.

As temperature increases, so does the average kinetic energy (speed) of the molecules.

Answer 2

Answer: The correct option is (D)

Explanation:

As the temperature increases the energy of the particles increases which results in increase of kinetic energy of the particles. With this increase in energy particles moves more rapidly.

So, the particles at higher temperature will be moving at faster speed in region 5.