C2 Change in U, Heat and temperature, Thermal equilibrium, Zeroth law of thermodynamic and Temperature Scales

Change in U
-/\K.E is observed by /\T
-/\K.E is observed by /\state of matter

Heat and temperature
-What are the melting and bioling points and freezing points and condensing
{Heat transfer
def: -Heat transfer is the movement of energy from one place or material to another as a result of difference in temperature.

Thermal equilibrium
Def -Two objects are in thermal equilibrium with each other if there is no net flow of E, when allowed to interact.}
Observation or property->-If two objects are in thermal equilibrium, they have the same temperature

Zeroth law of thermodynamics
{Def: If two objects are in thermal equilibrium, and a third object is in thermal equilibrium with one of those objects, it is also in thermal equilibrium with other object.

https://pb.blackvoid.club/?097750fd0ddd18cb#ByZqgvPzV5R4vdLDACWYgnvFH9ycvPKLNYsJrVj8Dhn3
So A and B also in thermal equilibrium

Temperature Scales
1)Fahrenheit scale degree F 2)Celsius scale degree C 3)Kelvin K scale
Kelvin scale
-Absolute zero(-273.15oC) a.k.a 0K is the temperature at which the average kinetic energy of molecules is zero
-This is the lowest possiblef, and the volume and pressure of a gas becomes zero at this point,
-The Kelvin scale is the absolute temperature scale.
-Kelvin-Celsius conversion:
T(K)=theta(oC)+273.15
/\T(K)=/\theta(oC)<--Change in 1oC is Change in 1K