Triple point
What is triple point?
The temperature and pressure at which a substance can exist in equilibrium in solid, liquid and gaseous state.
The triple point of water was used to define the kelvin, the base unit of thermodynamic temperature for SI units.
Major physics concept
Thermodynamics
Condition of triple point is 273.16 K ( 0.01 C ),
611.73 pascal.
Thermodynamics
Deals with heat and other forms of energy
Deals with relationships between energy
Can be applied in physics, chemical engineering, mechanical engineering and etc.
In the footage, it shows that how pressure and tempature of the water changes until it reach equilibrium of triple point.
Matter
Laws of thermodynamics
First Law
Second Law
Zeroth Law
Third Law
Matter
3 types of matter
liquid
gas
solid
bond together with a strong intermolecular force
molecules packed together, maintain its shape
have definite mass , volume and shape
have enough intermolecular bonding
only have definite mass and volume
has no fixed shape and volume
very weak intermolecular bonding