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Oxygen (O(2)) molecules have a value of ...

Oxygen `(O_(2))` molecules have a value of `21 J mol^(-1) K^(-1)` for the specific heat at constant volume. What is the approximate value of the specific heat at constant pressure assuming that the oxygen molecules do not have vibration mode?

A

`29.4 J "mol"^(-1) K^(-1)`

B

`35.1 J "mol"^(-1) K^(-1)`

C

`27.1 J "mol"^(-1) K^(-1)`

D

`45.2 J "mol"^(-1) K^(-1)`

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