Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoKTGMedium2 minQB

PhysicsMediumsingle choice

Five molecules have speeds of 2.8, 3.2, 5.8, 7.3, and 7.4 m/s. Their root-mean-square speed is closest to :

Answer:

Solution:

$v_{rms} = \frac{2. 8 ^{2} + 3. 2 ^{2} + 5. 8 ^{2} + 7. 3 ^{2} + 7. 4 ^{2}}{5} = \frac{159.77}{5} \approx 5.7 m / s$ .

Stream:JEESubject:PhysicsTopic:Heat & ThermoSubtopic:KTG

⏱ 2mℹ️ Source: QB

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