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  • Tell me? For a diatomic ideal gas in a closed system , which of the following plots does not correctly describe the relation between various thermodynamic quantities ?

For a diatomic ideal gas in a closed system , which of the following plots does not correctly describe the relation between various thermodynamic quantities ?

  • Option 1)

  • Option 2)

  • Option 3)

  • Option 4)

Answers (1)

best_answer

 

Closed System -

System which can exchange only energy but can not exchange matter with the surrounding

- wherein

Any matter in close container

 

 

Change in entropy for ideal gas in terms of C(p) -

\Delta S_{system}= nC_{P}\ln \frac{T_{f}}{T_{i}}+nR\ln \frac{P_{i}}{P_{f}}

- wherein

C_{p}= Molar heat capacity at constant pressure

As ew have learned in closed system higher temperture,rotational degree of  freedom becomes active

C_{p}=\frac{7}{2}R \, \, \, \, (indepedent of P)

C_{v}=\frac{5}{2}R \, \, \, \, (indepedent of v)

Variation of U  vs T is similar as Cv vs T

 


Option 1)

Option 2)

Option 3)

Option 4)

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