Start Free Mock LoginAlready registered? Login here

Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoKinetic Theory of Gases and Gas LawsMedium2 minQB

PhysicsMediumnumerical

The pressure of a fixed mass of gas is doubled at constant volume. The rms speed of its molecules was v before. Find the new speed as a multiple of v (two decimals).

Answer:

1.41

Solution:

At constant $V$ , $P \propto T$ , so $T$ doubles.

$v_{r m s} \propto T$ , so the new speed is $2 v = 1.41 v$ .

Subject:PhysicsTopic:Heat & ThermoSubtopic:Kinetic Theory of Gases and Gas Laws

⏱ 2mℹ️ Source: QB

Doubts & Discussion

Loading discussions...