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Two moles of a triatomic linear gas (neg...

Two moles of a triatomic linear gas (neglect vibration degree of freedom) are taken through a reversible process ideal starting from A as shown in figure.
The volume ratio `(V_(B))/(V_(A))=4`. If the temperature at A is `-73^(@)C`, then :

Total enthalpy change in both steps is :
a.3000 R
b.4200 R
c.2100 R
d.0

Text Solution

Verified by Experts

The correct Answer is:
B
Two moles of traiatomic linear gas …………
`Delta H_(total) = Delta H_(AB)+Delta H_(BC)`
`=nC_(p)Delta T + 0`
`= 2xx(7)/(2)xxRxx(800-200)`
`= 4200 R`
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