P6(Molecules and matter) Flashcards
What is the formula for density
What is the movement for a solid
Vibrate about fixed positions, particles are clearly packed
What is the movement for liquids
Layers can flow over each other, particles still in contact with each other
What is the movement for Gases
Random directions and far away from each other and have random speeds
What is the Energy for solids
Least energy compared to liquids and gases because particles have restricted movements
What is energy for liquids
More energy compared to solids but less energy compared to gases because their particles have more more movement
What is the energy for Gases
Most energy compared to liquids and solids because they have higher speeds
What is the force for solids
Strong forces of electrostatic attraction compared to liquids and gases
What is the force for liquids
Particles are still compact strong force of electrostatic attraction but less then solids
What is the force for Gases
Weak forces of electrostatic attraction
What is the change of state called from liquid to gas
Boiling
What is the change of state called from gas to liquid
Condensation
What is the change of state called from liquid to solid
Freezing
What is the change of state called from solid to liquid
Melting
What is the change of state called from a gas to a solid AND a solid to a gas
Sublimation
What is internal energy
Energy of the particles that is caused by their individual motion and positions
What is specific latent heat fusion
Energy needed to change the state of 1kg of the substance from solid to liquid,at its melting point without changing the temperature
What is the formula for specific latent heat of fusion
What is specific latent heat of vaporisation
Energy needed to change the state of 1kg of the substance from liquid to vapour, at its boiling point without changing the temperature
What is the formula for specific latent heat of vaporisation
How is pressure caused
Pressure of a gas is caused by the random impacts of gas molecules on surfaces that are in contact with the gas
How does the gas pressure increase when the temperature of a gas increases
How can the temperature of a gas increase
What is the formula that relates pressure,volume and constant
Worked example of Pressure, volume and constant question
What relates gas pressure and temperature
Gas pressure is directly proportional to temperature for a fixed volume of gas
What is the formula that relates pressure force and area
Pressure= force/area
What is boyle’s law
Pressure is inversely proportional to volume for a fixed temperature
