Physics - Heat & Thermo Question with Solution | TestHub
PhysicsHeat & ThermoKinetic Theory of Gases and Gas LawsMedium2 minQB
PhysicsMediumassertion reason
Assertion: In a lab, you hear the sound of escaping gas almost at once, but it takes several seconds to smell it.
Reason: Sound travels as a wave at about 340 m/s, while the gas molecules reach you by diffusing through many collisions.
Options:
Answer:
A
Solution:
Sound is a pressure wave through the air and arrives quickly. Molecules collide with air molecules about times a second and drift very slowly. The reason explains the assertion. A.
Subject:PhysicsTopic:Heat & ThermoSubtopic:Kinetic Theory of Gases and Gas Laws
⏱ 2mℹ️ Source: QB
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