Question

which of the following solid shows GTT
(1) Table salt
(2) diamond
(3) plastic
(4) graphite​

Answer 1

Answer:

(4) graphite

Explanation:

step by step explanation

Answer 2

The right answer to the given question is option 3: Plastics.

• GTT of solids here is referred to as the Glass Transition Temperature.
• This is the property that is mainly exhibited by the amorphous solids.
• This is the temperature that shows alteration of the state matter of the solid and its appearance and property.
• Above this temperature amorphous solids tends to form rubbery form as it is transitioned from brittle glassy matter.
• Plastics are the amorphous matter having polymer linkage and they exhibit this characteristic.
• Hard plastics especially are used below its transition temperature in their glassy state for example.
• Other examples mentioned here are salt, graphite, and diamond are crystalline solids that do not exhibit this transition behavior and do not show glass transition temperature.
• Hence, plastics are the correct answer.