Match the column
Column-I | Column-I |
(i) Diatomic molecule | [A] Internal energy= RT |
(ii) f degree of freedom | [B] Work done is maximum |
(iii) Adiabatic process | [C] Cp = 3.5 R |
(iv) Isobaric expansion | [D] Fast and isolated system |
[E]Constraints= 3 N – f |
Text Solution
Verified by ExpertsCHECK THE SOLUTION.
Ans.
(i) [C]
(ii) [A],[E]
(iii) [D]
(iv) [B]
Sol.
Any diatomic molecule has 5 degrees of freedom
∴ C V = 
R
and C p = C V + R = 
R = 3.5 R
So, → (R).
If there are f degree of freedom, internal energy will be 
RT since each degree of freedom
contributes 
RT of energy per mole to the internal energy.
So, → (P)
Since f = 3N – K where K represents constraints.
K = 3N – f
So, → (T)
Adiabatic processes are fast and do not allow exchange of heat energy ( Δ Q = 0)
So, → (S)
In an isobaric process from certain situation, work done will be maximum.
So, → (Q).
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