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

cooler water above it begins to sink. What do we know about the relationship between the hotter water and the cooler
water?
The cooler water has less radiation.
The cooler water is denser.
O The hotter water has more radiation
The hotter water is denser

Answer 1

Explanation: in the picture☺️

Answer 2

The cooler water is denser

Step-by-step 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.