Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoThermodynamicsMedium2 minQB

PhysicsMediumsingle choice

In an adiabatic expansion of air ( $γ = 7/5$ ) the volume increases by 5%. Then, the percentage change in pressure is approximately

Answer:

Solution:

$P V^{γ} =$ const $\Rightarrow \frac{Δ P}{P} = - γ \frac{Δ V}{V} = - \frac{7}{5} \times 5% = - 7%$ .

Stream:JEESubject:PhysicsTopic:Heat & ThermoSubtopic:Thermodynamics

⏱ 2mℹ️ Source: QB

Loading discussions...