Admin Table of Contents
- 1 What energy transformation takes place in boiling water?
- 2 What is the energy conversion in boiling ring?
- 3 What happens to the kinetic energy when water boils?
- 4 How does a boiling ring work?
- 5 How is energy transformed when you cook on a stove?
- 6 Which is the best description of the energy transformations taking place when a gas stove is lit?
- 7 What happens when you boil water on a gas stove?
- 8 Why does the temperature of the liquid remain constant during boiling?
What energy transformation takes place in boiling water?
thermal energy
Convection only occurs in fluids, such as liquids and gases. When water is boiled on a stove, the water molecules at the bottom of the pot are closest to the heat source and gain thermal energy first. They begin to move faster and spread out, creating a lower density of molecules at the bottom of the pot.
What is the energy conversion in boiling ring?
Heat energy separates water molecules and gives water vapor. Energy transformation : Static electric attractive (electric) force to Kinetic energy (means gives velocity to water molecules) of molecules.
How does energy from a gas burner make water boil?
When boiling water on a gas-fired stove three heat transfer mechanisms are in place: radiation, convection and conduction. Radiation and convection mainly occur between the flame and the bottom of the kettle or pan. Also, convection occurs when the flue gases escape and travel along the sides of the kettle.
What energy transformation occurs in gas stove?
Gas stoves transform chemical energy from natural gas into heat energy.
What happens to the kinetic energy when water boils?
As a liquid is heated, its temperature increases. As its temperature increases, the molecules of the liquid gain energy and their kinetic energy increases. As the kinetic energy increases, the molecular motion increases and the molecules of the liquid overcome the force of attraction between them.
How does a boiling ring work?
A boiling ring (also called a water heater) is an electrical appliance built for boiling water. It is usually made of heat-conductive metal and plastic with the heating element forming a large ring at the base. The heating element is dipped in a container of water before the appliance is plugged into a power source.
What happens to energy during boiling?
When boiling occurs, the more energetic molecules change to a gas, spread out, and form bubbles. These rise to the surface and enter the atmosphere. In addition, gas molecules leaving the liquid remove thermal energy from the liquid. Therefore the temperature of the liquid remains constant during boiling.
What happens to kinetic energy when water boils?
How is energy transformed when you cook on a stove?
Conventional electric ranges, cooktops and ovens use heating elements to convert electrical energy into heat energy. This heat energy, in conventional ovens, then transfers to the pans containing the food by radiation and convection where it then transfers by conduction to the food to be cooked.
Which is the best description of the energy transformations taking place when a gas stove is lit?
A natural gas stove converts chemical energy from burning into thermal energy used to cook food.
What happens to the energy in boiling water?
When boiling occurs, the more energetic molecules change to a gas, spread out, and form bubbles. These rise to the surface and enter the atmosphere. It requires energy to change from a liquid to a gas (see enthalpy of vaporization). In addition, gas molecules leaving the liquid take away heat energy.
How does boiling change a liquid to a gas?
The change from a liquid phase to a gaseous phase occurs when the vapor pressure of the liquid is equal to the atmospheric pressure exerted on the liquid. Boiling is a physical change and molecules are not chemically altered during the process. How Does boiling Occur?
What happens when you boil water on a gas stove?
When boiling water on a gas-fired stove three heat transfer mechanisms are in place: radiation, convection and conduction. Radiation and convection mainly occur between the flame and the bottom of the kettle or pan. Also, convection occurs when the flue gases escape and travel along the sides of the kettle.
Why does the temperature of the liquid remain constant during boiling?
It requires energy to change from a liquid to a gas (see enthalpy of vaporization). In addition, gas molecules leaving the liquid take away heat energy. Therefore the temperature of the liquid remains constant during boiling. For example, water will remain at 100ºC (at a pressure of 1 atm or 101.3 kPa) while boiling.