The curve between v2rms and pressure P for constant volume is
A
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B
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C
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D
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Solution
The correct option is B We know that
Pressure P=13MVv2rms
Where, M=Molar mas, V=volume (constant) ∴P=av2rms
where a=M3V= constant ∴ Let P=X and v2rms=Y ⇒X=aY ⇒Y=1aX Y=mX+c (comparing with the eqn of straight line)
(thus, straight line passes through origin)