Question

At constant volume, for different diatomic gases the molar specific heat is

• A. Same and 3 cal/mole/°C approximately
• B. Exactly equal and its value is 4 cal/mole/°C
• C. Will be totally different
• D. Approximately equal and its value is 5 cal/mole/°C

Answer 1

Answer: (D)

Approximately equal and its value is 5 cal/mole/°C

Answer 2

$(C_{V})_{dia} = \frac{5}{2}R$ Joule/mol/°C $= \frac{5}{2}\frac{R}{J}$ » 5 $\frac{cal}{mol - {^\circ}C}$