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Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoKTGMedium2 minQB

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The following graph shows two isotherms for a fixed mass of an ideal gas. The ratio of r.m.s. speed of the molecules at temperatures $T_{1}$ and $T_{2}$ is

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Solution:

For an isotherm $T \propto P V$ . From the grid, $T_{1}$ passes through $PV = 4$ and $T_{2}$ through PV $= 1$ , so $\frac{T _{1}}{T _{2}} = 4$ .

$\frac{v _{1}}{v _{2}} = \frac{T _{1}}{T _{2}} = 2.$

Stream:JEESubject:PhysicsTopic:Heat & ThermoSubtopic:KTG

⏱ 2mℹ️ Source: QB

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