In which case would the kinetic energy of particles be increasing?

Question

a. Metal is melted at 1,300°C.
b. Metal is heated from room temperature to 200°C.
c. Metal is at room temperature, 37°C
d. Metal is cooled at 1,300°C.

Answer 1

The kinetic energy of particles in a substance generally increases with temperature. Therefore, the correct option in which the kinetic energy of particles would be increasing is:

b. Metal is heated from room temperature to 200°C.

In this case, as the metal is heated, the thermal energy increases, leading to an increase in the kinetic energy of the particles.