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The kinetic energy per kg of nitrogen mo...

The kinetic energy per kg of nitrogen molecules at 175^(@)C` is (Molecular weight of nitroegn 28 and R=3820 J/k mole K)

A

`19.968xx10^(6)J`

B

`1.783xx10^(5)J`

C

9.1×10^4

D

`1.678xx10^(5)J`

Text Solution

Verified by Experts

The correct Answer is:
C
`K.E_(2)//kg=(3)/(2)(RT)/(M)=(3)/(2)xx(3820xx448)/(28)`
`=(3xx3820xx224)/(28)`
`=3xx3820xx8=24xx3820=91680`here R=3820 provided in problem
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