Analysing Changes in the States of Matter (Structured Questions)


Question 1:
Diagram below shows the changes in the state of matter of a substance.
Based on the Diagram,
(a) name the processes R, S and T using the following information.

(b) What happens to the kinetic energy of the particles in the substance during process R?
(c) What happens to the movement of the particles in the substance during process S?
(d) Draw the particle arrangement in X in the box provided below.


Answer:
(a)
R: Melting
S: Freezing
T: Condensation

(b)
During melting, the kinetic energy of the particles increases.

(c)
During freezing, the particles slowing down in their motion and form a pattern, becoming a solid.

(d)




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