Physics-
General
Easy
Question
Two identical vessels 
and 
with frictionless pistons conatin the same ideal gas at the same temperature and the same volume 
. The masses of gas in and are 
respectively. The gases are allowed to expand isothermally to same final volume 
. The change in pressures of the gas in and are found to be 
respectively. Then
The correct answer is:
Let 
are the initial and final pressures of the gas filled in 
Then
…(i)
where 
is the atomic weight of the gas.
Similarly, 
…(ii)
Dividing Eq.(ii) by Eq. (i), we get
or
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