Fluid expansion
The tools used to investigate the expansion of a liquid is called boiling flask . The main properties of liquids is to adjust the shape of the container . Therefore it has a liquid volume expansion alone .
Gas expansion Substance
The tools used to investigate the gas expansion called dilatometer . One of the differences between gas substance with solids and liquid is the volume of a gas substance can be changed easily . For example ,
an LPG cylinder . In the course of gas cylinders will hold pressure on the walls of the tube . This pressure is caused by the movement of gas particles . Three things to note is the volume of gas in the substance ,
pressure and temperature .
a. For volume to changes in temperature at a constant pressure
V = Vo { 1 + γp ( t2 - t1 ) }
information
V = volume of gas at a temperature t ( m3 )
Vo = initial gas volume ( m3 )
γp = coefficient of expansion of the gas at constant pressure ( / 0C )
t1 = initial temperature ( 0C )
t2 = final temperature ( 0C )
b . Pressure to temperature changes in the volume of fixed
P = Po { 1 + γv ( t2 - t1 ) }
information
P = pressure of the gas at temperature t ( m3 )
Po = initial pressure of the gas ( m3 )
γv = coefficient of expansion of the gas at constant volume ( / 0C )
t1 = initial temperature ( 0C )
t2
c . Gas volume expansion
V = Vo ( 1 +273 t )
From the results of experiments conducted turns coefficient of expansion
for all types of gases are the same , namely
273
1 / K or 0.00367 / K
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