Question

When a kettle is placed on the stove and water begins to boil, the hotter water at the bottom begins to rise and the

Answer 1

Answer:

Explanation: in the picture☺️

Answer 2

Answer:

The cooler water is denser

Explanation:

Convection drives the boiling of water placed on a stove in a kettle.

During convection, heat is circulated by density differences in portions of a fluid.

Convection is a form of heat transfer in fluids especially gas and liquid.

• In boiling water, the heat is supplied to the base of the stove.
• The water at the bottom on heat becomes lighter as the molecules gain more kinetic energy.
• The colder part of the water on top sinks to replace the less dense on below.
• This exchange sets up convection cells in the kettle.