14.1 Temperature Flashcards
Define triple point
One specific temperature and pressure where all 3 phases of a substance can exist in thermal equilibrium
Define thermal equilibrium
A state in which there is no net flow of thermal energy between the objects involved ( objects involved must be at the same temperature )
When one object is hotter than the other there is…
The effect on the temperatures is that…
A net flow of thermal energy from the hotter to colder object
The hotter object decreases in temperature whereas the colder object increases with temperature
Define the Celsius scale
A temperature scale with 100 degrees between the freezing pint and boiling point of pure water ( at atmospheric pressure )
Define absolute temperature scale
Scale used to measure temperature based on absolute zero and the tripe point of pure water with gradations equal to the Celsius scale