As water is heated from 90°C to 180°C, the water molecules gain kinetic energy and move faster. At 100°C, water undergoes a phase change from liquid to gas (steam), so by 180°C the water would have fully evaporated into steam. The increased temperature causes the water molecules to break free from the liquid state and become a gas.
When ice is heated to 0 degrees Celsius, it begins to melt and turn into water. The heat energy is used to break the intermolecular bonds holding the water molecules together in a solid structure. Once all the ice has melted, the water continues to heat up until it reaches its boiling point of 100 degrees Celsius.
All liquids expand when heated. e.g. Mercury in a thermometer. One exception may be water when heated form 0 to 4 degrees Celsius.
Water changes state from a liquid to a gas when heated from 10 degrees Celsius to 80 degrees Celsius.
Water atoms do not expand or multiply when heated. When water is heated, the heat energy causes the water molecules to move faster and farther apart, which results in the expansion of the water volume. The number of water molecules remains the same.
When a sample of water is heated past 100 degrees Celsius, it is past its boiling point. At this temperature, water changes from a liquid to a gas.
The liquid molecules are transformed in gas molecules.
The liquid molecules are transformed in gas molecules.
As water at 4 degrees Celsius is heated slightly, it will start to expand and the temperature will increase. This is because water is at its maximum density at 4 degrees Celsius, and heating it will cause the molecules to move faster and spread out, leading to a volume increase and a temperature rise.
100 degrees celsius
When ice is heated to 0 degrees Celsius, it begins to melt and turn into water. The heat energy is used to break the intermolecular bonds holding the water molecules together in a solid structure. Once all the ice has melted, the water continues to heat up until it reaches its boiling point of 100 degrees Celsius.
All liquids expand when heated. e.g. Mercury in a thermometer. One exception may be water when heated form 0 to 4 degrees Celsius.
Density decreases as expansion takes place when temperature increases.
the molecules evapourate
When water is heated to 100 degrees Celsius, it will reach its boiling point and start to evaporate into steam. At this temperature, the water molecules have enough energy to overcome the intermolecular forces that hold them together in the liquid state.
Water changes state from a liquid to a gas when heated from 10 degrees Celsius to 80 degrees Celsius.
100 degree Celsius
1,000 m