How will you separate a mixture containing kerosene and petrol,which are miscible with each other?

Question

Answer

To separate a mixture containing kerosene and petrol which are miscible with each other, fractional distillation process is employed. 1:take a mixture of kerosene and petrol in a distillation flask and heat it on a low flame. 2 :The petrol has lower boiling point than kerosene. It vaporizer early as compared to kerosene. When the vapour of petrol and kerosene are passed into fractionating columns. The kerosene in the form of liquid flows back in the distillation flask. 3 :when the temperature starts rising the receiver is replaced by another receiver to collect the kerosene. 4:the vapour of petrol pass into liebig's condenser, these vapours get liquefied and flow into receiver.

Answer

We can separate them by using separating funnel because it is a immiscible liquid. we can separate miscible liquids by using distillation process or fractional distillation process....

Answer

Separating a Mixture of Kerosene and Petrol

Introduction:
When dealing with a mixture of two miscible liquids such as kerosene and petrol, it becomes necessary to employ a separation technique to obtain the individual components in their pure form. In this case, we can use the process of fractional distillation to separate kerosene and petrol based on their boiling points.

Materials Required:
- Mixture of kerosene and petrol
- Fractional distillation apparatus
- Heat source (Bunsen burner or electric heater)
- Thermometer
- Collection flasks
- Water source for cooling

Procedure:
1. Setup the fractional distillation apparatus: Assemble the fractional distillation apparatus by connecting the round-bottom flask (containing the mixture) to the fractionating column, condenser, and collection flasks. Ensure all connections are tight and secure.

2. Apply heat: Place the round-bottom flask on a heat source and gradually increase the temperature. The heat source can be a Bunsen burner or an electric heater. Make sure to use a heating mantle or sand bath to distribute the heat evenly.

3. Observe temperature changes: As the mixture is heated, the temperature will start to rise. Monitor the temperature using a thermometer placed at the top of the fractionating column. Note down the boiling points of kerosene and petrol.

4. Fractional distillation: As the temperature approaches the boiling point of petrol (around 70-80°C), petrol will vaporize and rise up the fractionating column. It will then condense in the condenser and collect in a separate flask.

5. Collection of kerosene: Once the temperature rises above the boiling point of petrol and reaches the boiling point of kerosene (around 150-180°C), kerosene will start vaporizing and collecting in a separate flask.

6. Cooling and condensing: To facilitate the condensation of the vapors, ensure a continuous flow of cold water through the condenser. This will cause the vapors to condense back into liquid form.

7. Collection and storage: Collect the separated kerosene and petrol in separate flasks. Label the flasks accordingly to avoid confusion.

Conclusion:
By following the process of fractional distillation, we can effectively separate a mixture of kerosene and petrol. The key to this separation technique lies in the distinct boiling points of the two components. Petrol, with a lower boiling point, will vaporize first and condense separately, followed by the vaporization and condensation of kerosene at a higher temperature.

Top Courses for Class 9View all

Science Class 9

Social Studies (SST) Class 9

Mathematics (Maths) Class 9

English Class 9

English Grammar Advanced

Top Courses for Class 9

Top Courses for Class 9

Suggested Free Tests

Related Content

Class 9 Study Material

Class 9 Subjects

Competitive Examinations for Class 9

NCERT Books

NCERT Solutions

Reference Books for Class 9

Other Popular Exams

Company