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Question
The isothermal bulk modulus of a perfect gas at pressure P is numerically equal to ____________.
Options
P
`"P"/gamma`
`"p"gamma`
`"P"^gamma`
MCQ
Fill in the Blanks
Solution
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."`
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First Law of Thermodynamics
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