A lava lamp contains a mixture of colored paraffin wax and another compound that

Question

A lava lamp contains a mixture of colored paraffin wax and another compound that makes the solid was just a bit denser than the clear liquid (usually mineral oil or water) in the lamp. The heat is supplied by a light bulb below the sealed glass bottle of the lamp. There is a wire heating coil in the bottom of the sealed bottle to help transfer heat energy into the wax. The top and sides of the sealed glass bottle are cooler than its heated base.

3. What causes the wax to move from the top of the lamp to the base of the lamp? (Be specific and complete as you can)

4. What heat-transfer mechanism is displayed by rising and falling molten wax in the lamp?

Explanation / Answer

3) The wax move from the top of the lamp to the base of the lamp because when the light bulb heats the wax, the wax rises as the molecules become cooler at the top of the lamp which causes the lava wax is to become denser than the water which causes it to sink and when wax cools it falls.

4) Convection heat-transfer mechanism is displayed by rising and falling molten wax in the lamp.

There are 3 types of heat transfer mechanisms in the lava lamp: conduction, convection and radiation. All 3 types are different as well as how they interact.

- Conduction: when heat transfer by direct contact.

- Convection : when heat transfer by mass
movement of fluids.

- Radiation: whenheat transfer by electromagnetic waves.

Each type of heat transfer play role in creation of movement of energy....

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