Question

Which of the following phenomenon can transform matter from one state to another?

• A. Change in temperature
• B. Change in concentration
• C. Change in pressure
• D. Both, change in pressure and concentration

Answer 1

Answer: (A), (C)

The correct options are
A

Change in temperature

C

Change in pressure

Particles in solids have the least kinetic energy as compared to liquids and gases. As the temperature increases, kinetic energy increases, an interparticle force of attraction decreases and interparticle distance increases. This leads to a change in state - from solids to liquids and then to gases.
As we know, in solids, particles are much closer to each other and the distance between the particles increases as we move towards the gaseous state. So, with the increase in pressure and decrease in temperature, gases can be converted to liquids and then to solids.