Please enable JavaScript.
Coggle requires JavaScript to display documents.
Thermal (Gas Laws (Ideals gases are made up of particles with negligible…
Thermal
Gas Laws
Boyle's Law
The pressure and volume of a fixed mass of ideal gas are inversely proportional under constant temperature
Charles' Law
The volume and absolute temperature of a fixed mass of ideal gas are directly proportional under constant pressure
The Pressure Law
The pressure and absolute temperature of a fixed mass of ideal gas are directly proportional under constant volume
-
-
-
Ideals gases are made up of particles with negligible volume which have no forces acting between the molecules
-
The work done in changing the volume of a gas at a given pressure is given by the area under the pressure volume graph for that gas
-
Kinetic Theory
-
-
-
-
Maxwell-Boltzmann Distribution
Plot of the kinetic energy of a gas particle under the fraction of the particles in a gas that have that energy
-
-
-
-
-
Brownian Motion
The apparent random motion of large particles placed inside a fluid of smaller particles (eg smoke in air)
The large particles collide randomly with the smaller particles making the larger particles move in an apparent random motion
-
Root Mean Square Speed
The square root of the mean of the squared magnitudes of the velocities of the particles in a gas
Heat
Specific Heat Capacity
The amount of energy required to increase the temperature of 1kg of substance by 1 degree celsius
-
Change of State
-
-
Specific Latent Heat
The amount of energy required to change the state of 1kg of substance, at constant temperature
When a substance changes state the potential energy of the particles changes while the kinetic energy (and therefore the temperature) stays constant
If one was to keep heating a substance then as the temperature of the substance increased the energy supplied would go into increasing the kinetic energy of the particles in the substance
When a state change was occurring the temperature would stay constant and the energy supplied would go into increase the potential energy of the particles
Latent heat of vaporisation is usually much greater than the latent heat of fusion, as the increase in separation (and therefore the increase in potential energy) is much greater going from a liquid to a gas rather than from a solid to a liquid
Internal Energy
The sum of the randomly distributed kinetic and potential energies of the particles in a substance
For a closed system, in which no energy is allowed to be transferred between the system and it's surroundings, the internal energy will remain constant
Work can be done on a system to increase or decrease it's internal energy, transferring energy to or from the system respectively
-
Moles
-
-
-
Relative Atomic Mass
The average mass of an atom of an element relative to one twelfth the mass of an atom of carbon-12