Chapter 5, Problem 18STP

To determine

Radiation usually passes through gases more easily than through solids and liquids.

Explanation of Solution

Introduction:

Radiation is defined as the transfer of energy in the form of waves, like electromagnetic radiations (radio waves, microwaves) and gamma radiations. They carry energy through solids, liquids, and gases. They also carry energy through empty spaces.

Radiant energy can travel through space between particles of a solid, liquid, or gas. These particles can absorb the radiation and emit the energy they absorb. This energy will travel through the space between the particles and then finally it is absorbed and emitted by other particles.

The energy transfer due to radiation is considered best in the case of gases. In gases, the particles are much farther apart in comparison to solids or liquids. This extra space allows the energy to travel more easily through gases.