Question

7. Explain the phenomenon of thermal expansion in solids...


plz answer ASAP​

Answer 1

Answer:

In physics, Thermal expansion can be defined as the change in the length, width, height, or volume of any material on changing the temperature. Thermal expansion is very evident in solids as atoms are densely packed. Thermal expansion of solids has loads of applications in day to day life.

Answer 2

All three states of matter (solid, liquid and gas) expand when heated. The atoms themselves do not expand, but the volume they take up does. When a solid is heated, its atoms vibrate faster about their fixed points. The relative increase in the size of solids when heated is therefore small.

Solids also undergo thermal expansion. Railroad tracks and bridges, for example, have expansion joints to allow them to freely expand and contract with temperature. changes.

Thermal expansion is the tendency of matter to change its shape, area, volume, and density in response to a change in temperature, usually not including phase transitions. Temperature is a monotonic function of the average molecular kinetic energy of a substance.

Thermal Expansion - Real-life applications

ENGINE COOLANT. Another example of thermal expansion on the part of a liquid can be found inside the car's radiator. ...

WATER. ...

THE GAS LAWS. ...

VOLUME GAS THERMOMETERS. ...

JAR LIDS AND POWER LINES. ...

EXPANSION JOINTS. ...

MERCURY IN THERMOMETERS. ...

THE BIMETALLIC STRIP IN THERMOSTATS.

Advantages of a Thermal Expansion Valve

Adaptable Refrigerant Flow. ...

Keeps the Evaporator Active and in Optimal Performance. ...

Higher Power Efficiency. ...

Eliminates Risk of Compressor Breakdown. ...

Handles Variation in Refrigerant Charge. ...

Better Temperature Control..

in simple words.*:::

Thermal expansion, the general increase in the volume of a material as its temperature is increased.