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# What is the melting point and freezing point of naphthalene?

## What is the melting point and freezing point of naphthalene?

176.5°F (80.26°C)
Naphthalene/Melting point

### What is the melting point of naphthalene graph?

The melting point of naphthalene is 80°C and the room temperature is 30°C. A sample of liquid naphthalene at 100°C is cooled down to the room temperature. Draw a temperature time graph to represent this cooling. In the graph, mark the region which corresponds to the freezing process.

#### What is the normal freezing point of naphthalene?

The boiling point and freezing point of naphthalene are 80.1 C and 5.5 C, respectively, and Kb=2.53∘C/M,Kt=5.12∘C/M K b = 2.53 ∘ C / M , K t = 5.12 ∘ C / M .

How do you find the freezing point of naphthalene?

Ignite the Bunsen burner and using direct heat melt the naphthalene powder until it completely turns to a liquid. When the temperature reaches approximately 90o Celsius, stop heating. 6. Observe the change in temperature from 90o to 70o Celsius, recording the temperature at regular intervals, preferably 15 seconds.

What freezing point means?

freezing point, temperature at which a liquid becomes a solid. As with the melting point, increased pressure usually raises the freezing point.

## How do you find the melting point of naphthalene?

To find the melting range, note the temperature when the naphthalene melts. Leave to cool and note the temperature when the naphthalene solidifies. To find the melting point, calculate the average of these two values. The melting point of pure naphthalene is 80.5oC.

### Why temperature is constant during melting and freezing of naphthalene take place?

The temperatures from Point B to C remain constant because the heat energy absorbed by the particles was used to overcome the forces between the particles so that the solid can turn into liquid.

#### What is melting and freezing point?

Freezing point is the temperature at which a liquid becomes a solid at normal atmospheric pressure. Alternatively, a melting point is the temperature at which a solid becomes a liquid at normal atmospheric pressure.

What is the melting freezing point of the substance?

At the melting point the solid and liquid phase exist in equilibrium. The melting point of a substance depends on pressure and is usually specified at a standard pressure such as 1 atmosphere or 100 kPa.

How do you determine melting point?

The melting point of an organic solid can be determined by introducing a tiny amount into a small capillary tube, attaching this to the stem of a thermometer centred in a heating bath, heating the bath slowly, and observing the temperatures at which melting begins and is complete.