Temperature

The concept of temperature and the Law to 0
What was the object of investigation in the system is called thermodynamics. Eg gas, liquid, a piece of metal, batteries, and others.

 
Between system and environment are the dividing wall.
We note that between system and environment interactions may occur.
Interaction is the exchange of heat (or thermal interactions) and procurement effort.If thr Interaction prevented from happening, the system is called isolated.


TEMPERATURE
The size of the cold temperature is the heat of an object relative and this is one determinant of physical properties of an object.
Temperature is a measure of the average kinetic energy of molecular motion.
Microscopically, the temperature shows the energy possessed by an object.

LAW TO-0
This law put the concept of temperature on a solid basis, ie when there are two systems in thermal equilibrium, then both have the same temperature, if not in thermal equilibrium then both have different temperatures.

If system A is in thermal balance with the system B and system A is in thermal balance with the system C, then B is a balanced system with a system of C.


Measurement of temperature
Temperature measuring device called a thermometer.
In order to place a quantitative measurement, a thermometer need a scale affixed.
Absolute scale in the SI system is the thermodynamic temperature kelvin (K), the formula dimensions were measured with an ideal gas thermometer.
Another temperature scale (non-SI) are still widely used is the Celsius temperature scale, Fahrenheit, and Reamur.
Each thermometer has its own advantages and disadvantages

Temperature Measurement
1. Water Thermometers Alcohol
If the fluid heats the alcohol will increase so that the scale increases

 


2. Gas thermometers at fixed volume
Termomter gas using the principle of the influence of temperature on pressure.

 


3. Thermocouple Thermometers
Can measure the range - up to 1500o 180o C depending on the type of metal

Scale-Scale Thermometers