faq
The movement of the molecules making up the solid increases.
Molecular movement is directly related to temperature. As temperature increase, the additional energy is absorbed by the molecules. This energy is converted to motion energy and the molecules will move faster.
As iron is heated, the movement of molecules inside the solid block of iron increases, leading to greater vibration and kinetic energy. This causes the atoms and molecules to move more freely within the lattice structure of the solid, resulting in expansion of the iron block.
Increases
As temperature increases, the movement of molecules in a substance also increases. This is because higher temperature provides more energy to the molecules, causing them to move faster and more vigorously. Conversely, lowering the temperature reduces molecular movement.
When ice changes to water, the speed of the water molecules increases. In the solid state as ice, the molecules are held in a rigid structure and have minimal movement. As heat is added, the molecules gain energy, causing them to vibrate faster and break free from their rigid arrangement, resulting in the molecules moving more freely in the liquid state.
As energy is added and temperature increases, molecules gain kinetic energy and move more rapidly. This increase in movement can lead to stronger molecular interactions, changes in molecular configuration, and ultimately a change in the state of matter (e.g., from solid to liquid or gas).
Their speed - Kinetic Energy - increases as the solid melts.
Temperature is a measure of the average value of the kinetic energy of the molecules in a substance. As temperature increases, the kinetic energy of the molecules also increases, leading to higher speeds and more rapid movement.
It increases the collisions that result in a reaction. or it increases the kinetic energy of the molecules.
It increases the collisions that result in a reaction. or it increases the kinetic energy of the molecules.
As the iron is heated, the kinetic energy of the molecules increases, causing them to vibrate more rapidly and over larger distances. This increased motion disrupts the ordered arrangement of the molecules, leading to expansion of the solid structure as the molecules move further apart.