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Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoKTGMedium2 minQB

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A thermally insulated vessel with gaseous nitrogen at a temperature of 27°C moves with velocity 100 m/s. If the vessel is suddenly stopped, the change in the gas pressure will be in percentage is:

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Answer:

Solution:

$\frac{1}{2} m v^{2} = \frac{f}{2} n R Δ T \Rightarrow Δ T = \frac{m v ^{2}}{f R} = \frac{28 \times 1 0 ^{- 3} \times 1 0 ^{4}}{5 \times 8.3} = 6.74 K (m = nM)$ . Pressure rises in proportion: $\frac{Δ T}{T} = \frac{6.74}{300} \approx 2.2%$ increase.

Stream:JEESubject:PhysicsTopic:Heat & ThermoSubtopic:KTG

⏱ 2mℹ️ Source: QB

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