3. The specific heat at constant pressure and at constant volume for an ideal gas are
The specific heat at constant pressure and at constant volume for an ideal gas are Cp and Cv and its adiabatic and isothermal elasticities are EΦ and Eθ respectively. The ratio of EΦ to Eθ is
(a) Cv/ Cp (b) Cp / Cv
(c) Cv Cp (d) 1/(Cv Cp
Answer-b
(12)