Question

If a solid piece of naphthalene is heated and remains at 80°C until it is completely melted, you know that 80ºC is the

Answer 1

Answer : Freezing and Melting point

Explanation :

The solid piece of naphthalene when heated is observed to melt after it attains the temperature of 80° C and then this 80° C is called as it melting point. After 80° C naphthalene will start to melt and get transformed into liquid state. Also if this naphthalene is allowed to cool down after 80° C it will be the freezing point of naphthalene.

Answer 2

Answer: Melting point of the naphthalene is 80
`^oC`.

Step-by-step explanation:

Melting point of a substance is temperature at which given solid changes its state from solid to liquid. It is also referred as freezing point of the substance.

Freezing point of substance is a temperature at which given substance changes its state from liquid to solid.

Here, the solid piece of naphthalene is heated and remains at 80°C until it is completely melted.