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The molar volume of CO(2) is maximum at...

The molar volume of `CO_(2)` is maximum at

A

NTP

B

`0^(@)C` and 2.0 atm

C

`127^(@)C` and 1 atm

D

`273^(@)C` and 2.0 atm

Text Solution

Verified by Experts

The correct Answer is:
C
`PV = nRT`
Here `n = 1`
`V = (RT)/(P)`
At NTP
`V = (R xx 273)/(1) = 273 R`
At `0^(@)C (273 K)` and 2 atm
`V = (R xx 273)/(2) = (273 R)/(2)`
At `127^(@)C`(400K) and atm
`V = (R xx 400)/(1) = 400R`
At `273^(@)C` (546 K) and 2 atm
`V = (R xx 546)/(2) = 273 R`
Thus, molar volume is maximum at `127^(@)C` and 1 atm pressure
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