MCQ
For an ideal gas of diatomic molecules
  • A
    ${C_p} = \frac{5}{2}R$
  • B
    ${C_v} = \frac{3}{2}R$
  • C
    ${C_P} - {C_v} = \,2R$
  • ${C_P} = \frac{7}{2}R$

Answer

Correct option: D.
${C_P} = \frac{7}{2}R$
d
${C_P} = \left( {\frac{f}{2} + 1} \right)\,R = \left( {\frac{5}{2} + 1} \right)\,R = \frac{7}{2}R$

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