COMEDK · Physics · 13. Thermodynamics
In an adiabatic expansion of air, the volume is increased by \(6.2 \%\). The percentage change in pressure is \((\gamma=1.4)\)
- A 4.84
- B 6.48
- C 8.68
- D 2.24
Answer & Solution
Correct Answer
(C) 8.68
Step-by-step Solution
Detailed explanation
For an adiabatic process, the relation between pressure \(P\) and volume \(V\) is given by \(PV^{\gamma} = \text{constant}\). Taking the logarithmic differentiation of the equation \(PV^{\gamma} = C\), we get \(\ln P + \gamma \ln V = \ln C\). Differentiating both sides, we…
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