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An open vessel at 27^@C is heated until ...

An open vessel at `27^@C` is heated until three-fourths mass of the air in it has been expelled. Neglecting the expansion of the vessel, the temperature to which the vessel has been heated is 

A

`927^@C`

B

`108^@C`

C

`1000^@C`

D

`477^@C`

Text Solution

Verified by Experts

The correct Answer is:
A
`n_1T_1 = n_2T_2 , n xx 300 = n/4 xx T_2`
`T_2 = 1200 K = 927^@C`.
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