The following sets of values for C(v) an...

The following sets of values for `C_(v)` and `C_(p)` of an ideal gas have been reported by different students. The units are cal `"mole"^(-1)K^(-1)`. Which of these sets is most reliable?

`C_(V)=3, C_(P)=5`

`C_(V)=4, C_(P)=6`

`C_(V)=3, C_(P)=2`

`C_(V)=3, C_(P)=4.2`

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