Particle Model Flashcards
Gas pressure definition
Pressure is force per unit area. The gas pressure is due to the force the gas particles exert on the walls of the container.
Sublimation definition
Change in state from a solid to a gas or a gas to a solid (missing out liquid phase).
Internal energy definition
The total kinetic and potential energy of all the particles that make up the system.
Specific heat capacity definition
The amount of energy needed to increase the temperature of 1kg of a substance by 1 degree celsius.
Condensing definition
Change in state from a gas to a liquid
Evaporating definition
Change in state from a liquid to a gas
Freezing definition
Change in state from a liquid to a solid
Melting definition
Change in state from a solid to a liquid
Specific latent heat definition
The energy needed to change the state of 1kg of a substance with no change in temperature
_____ = Mass/Volume
Density = Mass/Volume
Density = _____/Volume
Density = Mass/Volume
Density = Mass/_____
Density = Mass/Volume
_=m/v
p=m/v
p=_/v
p=m/v
p=m/_
p=m/v
What is density measured in?
kg/m**3
What is mass measured in?
kg
What is volume measured in?
m**3
What do you need to find to calculate the density of an object?
the mass and the volume of the object
What equipment should you use to find the mass of an object?
A top pan balance
What equipment should you use to find the volume of a regular solid?
A ruler or Vernier callipers
What equipment should you use to find the volume of an irregular solid?
A displacement can
True or False: Mass is conserved when a change of state occurs.
True
True or False: Changes of state are chemical changes which cannot be reversed.
False - Changes of state are physical changes which can be reversed.
_____ = Mass * Specific heat capacity * Temperature change
Energy = Mass * Specific heat capacity * Temperature change (Year 9 Spring 1 - Section E)
