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A flask is filled with 13 g of an ideal ...

A flask is filled with `13 g` of an ideal gas at `27^(@)C` and its temperature is raised to `52^(@)C`. The mass of the gas that has to be released to maintain the temperature of the gas in the flask at `52^(@)C`, the pressure remaining the same is

A

2.5 g

B

2.0 g

C

1.5 g

D

1.0 g

Text Solution

Verified by Experts

The correct Answer is:
D
`PV=nRTrArrPV=m/MRT`
Since P,V,M and R are constant
`mprop1/TrArrm_1/m_2=T_2/T_1`
`rArr(13)/m_2=((273+52))/((273+27))`
`rArrm_2=12g`
Mass released = 13g - 12g = 1g
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