If ‘ $C_p$ ’ and $C_v$ are molar specific heats of an ideal gas at constant pressure and volume respectively, if ‘ $\lambda$ ’ is ratio of two specific heats and ‘ $R$ ’ is universal gas constant then ‘ $C_p$ ’ is equal to

• Correct answer
  A

  $\frac{R\gamma }{\gamma -1}$
• B

  $\gamma R$
• C

  $\frac{1+\gamma }{1-\gamma }$
• D

  $\frac{R}{\gamma -1}$

Hence, the correct answer is option: 'A'.