Chapter 12.2, Problem 14SSC

Interpretation Introduction

Interpretation:

The state of substance with the help of given temperature needs to be determined.

Concept introduction:

Gas is one of the physical state of matter in which the particles are located away from each other.

The particles of gas have high kinetic energy and exhibit different characteristics compare to liquid and solids.

Answer to Problem 14SSC

At low temperature, the substance exist in solid state as they have least energy whereas at high temperature they are usually in gaseous state as gas particles have very high kinetic energy.

Explanation of Solution

All substance can exist in three possible state of matter, solid, liquid and gases. In the solid state of matter, particles have least intermolecular distance with least kinetic energy. They can only show vibrations at their mean position due to least kinetic energy.

On the contrary, gaseous particles have high kinetic energy with largest intermolecular distance and least intermolecular force of attraction.

At low temperature, the substance exist in solid state as they have least energy whereas at high temperature they are usually in gaseous state as gas particles have very high kinetic energy.

Conclusion

Temperature determines the kinetic energy of particles.