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An ideal gas of molar mass contained in...

An ideal gas of molar mass contained in a very tall vertical cylindrical column in the uniform gravitational field. Assuming the gas temperature to be T, the height at which the centre of gravity of the gas is located is (R: universal gas constant)

A

(A) `(RT)/g`

B

(B) `(RT)/(Mg)`

C

(C) `MgR`

D

(D) `RTg`

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