Thermodynamics (sec 3) Flashcards
Heat is measured in joules
Additionally an object never has ‘heat’, it can lose or gain energy as heat.
Heat absorption for a substance
heat = temperature change(Kelvin) * Specific Heat (constant) * mass (kilograms)
The amount of energy input/output for an object based on change in temperature after heat loss/exposure. Not state change inclusive.
Names of state changes solid > liquid Liquid > solid liquid > gas gas > liquid solid > gas gas > solid
Names of state changes
solid > liquid : melting Fusion
Liquid > solid : freezing Fusion
liquid > gas : Evaporation Vaporization
gas > liquid : Condensation Vaporization
solid > gas : Sublimation Both
gas > solid : Deposition Both
Names of state changes solid > liquid Liquid > solid liquid > gas gas > liquid solid > gas gas > solid
Names of state changes
solid > liquid : melting Fusion
Liquid > solid : freezing Fusion
liquid > gas : Evaporation Vaporization
gas > liquid : Condensation Vaporization
solid > gas : Sublimation Both
gas > solid : Deposition Both
Entropy = Q(reversible)/T(constant for equation)
Essentially as heat is given to a system for any given temperature, without exceeding the temperature, or causing a reaction, we have increased the entropy in a matter directly proportional to the amount of heat placed into the system
Isolated system
A system that does not exchange energy or matter with the outside environment
Closed system
A system which does not exchange matter (since it’s closed) but can still exchange energy with the environment
Open system
Exchanges energy and matter with the environment
State function, the state is independent of the route to achieve it
Opposite of a process function
Temperature, weight, density, internal energy, enthalpy, volume, density
Process function describes the path between to points
Opposite of a State Function
Work and heat
Something you’d have to throw a delta by
