Changing State Flashcards
What can physical changes do
Change their arrangement
What is the first step
Solid is heated, it’s particles gain more energy
What is the second step
Makes particles vibrate, which weakens the forces that hold the solid together
What is the third step
At a certain temperate (melting point) the particles have enough energy to break free from their positions, this is called MELTING and the solid turns into a liquid
What is the fourth step
When a liquid is heated again, the particles get more energy
What is the fifth step
This energy makes the particles move faster, which weakens and breaks the bonds holding the liquid together
What is the sixth step
At a certain temp, (boiling point) the particles have enough energy to break their bonds, this is BOILING the liquid becomes a gas
What is the seventh step
As a gas cools, the particles nomloger have energy to overcome the forces of attraction between them
What is the eighth sto
Bonds form between particles
What is the ninth step
At the boiling point, so many bonds fork between the particles that it turns into a liquid, this is CONDESING
What is the tenth step
When a liquid cools, the particles have less energy so move around less
What is the eleventh step
There’s not enough energy to overcome the attraction between the particles- so more bonds form
What is the last step
At the melting point, many bonds have formed that they’re held in place, the liquid is a solid. This is FREEZING
What does the amount of energy needed for a substance depend on
How strong the forces between the particles are, the stronger the forces, the more energy needed to break them, so higher the melting and boiling points
What is the state of a substance if it’s below the melting point
Solid
