Adiabatic modulus of elasticity of a gas...

Adiabatic modulus of elasticity of a gas is `2.1xx10^(5)N//m^(2).` What will be isothermal modulus if elasticity `(C_(p)/C_(v)=1.4)`

`1.2 xx10^(5)Nm^(-2)`

`4 xx10^(5)Nm^(-2)`

`1.5 xx10^(5)Nm^(-2)`

`1.8 xx10^(5)Nm^(-2)`

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