Start Free Mock LoginAlready registered? Login here

Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoThermodynamics Laws & Specific Heats of GasesMedium2 minQB

PhysicsMediuminteger

A hand pump compresses air quickly (nearly adiabatically) from 300 K to one-eighth of its volume. Take $γ = 1.4$ . Find the final temperature in kelvin (nearest integer).

Answer:

689

Solution:

$T V^{γ - 1} = constant$ , so $T_{2} = 300 \times 8^{0.4} = 689.2$ K, which is about 689 K. This is why the pump heats up.

Subject:PhysicsTopic:Heat & ThermoSubtopic:Thermodynamics Laws & Specific Heats of Gases

⏱ 2mℹ️ Source: QB

Doubts & Discussion

Loading discussions...