Q. 204.0( 1 Vote )

The behaviour of matter in different states is governed by various physical laws. According to you what are the factors that determine the state of matter?

Answer :

We can get an idea about the different factors which determine the states of matter from the combination of all the gas laws.


The first law is the Charles’ Law.


It states that when pressure is kept constant, volume of an ideal gas (V) is directly proportional to the absolute temperature (T).


For the first ideal gas,


V1 =kT1 [k is some proportionality constant]


So, …(i)


Similarly for the second gas,


…(ii)


Combining (i) and (ii),



This is Charles’ Law.


The second gas law is Boyle’s Law.


It states that when temperature is kept constant, pressure of the given mass of an ideal gas (P) is inversely proportional to the volume(V).


For the first ideal gas,


= [k is some proportionality constant]


So, …(i)


Similarly for the second gas,



So, …(ii)


Combining (i) and (ii),



This is Boyle’s Law.


When we combine the above two laws, we get a new law which is known as the ideal gas law.


The combined gas law is as follows:


=


Where P1,V1,T1 and P2,V2,T2 are the pressure, volume and temperature for two gases respectively.


So we get to know that pressure, volume and temperature along with mass are the factors which determine the state of matter.


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