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Please answer the question which is in attachment. Plz.

Please answer the question which is in attachment. Plz.

Question Image
Grade:12th Pass

3 Answers

Arun
25763 Points
3 years ago
Dear Parth

4 g at 22.4 litres means 1 molecule contains 4g and hence it is helium gas which is monoatomic means gamma is equal to 5/3. cp/cv=gamma Cp/5=1.6 Gives Gives 8. 0

Regards
Arun (askIITians forum expert)
Parth Verma
49 Points
3 years ago
2 doubts in the answer by respected expert Arun,
Answer given in the book is also 8.0
(1) Cp/Cv = 5/3, C= 25/3 = 8.33(which is round off to 8.5)
(2) why we cannot directly use the formula Cp-Cv = R, from that we get ans. 13.3(which is not in option)
 
Parth Verma
49 Points
3 years ago
Respected expert Mr. Arun, please answer to my counter question. Please.

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