Question

The isothermal bulk modulus of a perfect gas at pressure P is numerically equal to ____________.

विकल्प

• P

• `"P"/gamma`

• `"p"gamma`

• `"P"^gamma`

Answer 1

The isothermal bulk modulus of a perfect gas at pressure P is numerically equal to P.

Explanation:

For isothermal process,

PV = constant

∴ PdV + VdP = 0

or PdV = - VdP

`therefore -"dP"/"dV" "V" = "P" = "isothermal bulk modulus."`