Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoKTGEasy2 minPYQ_2021

PhysicsEasysingle choice

What will be the average value of energy for a monoatomic gas in thermal equilibrium at temperature $T ?$

Answer:

Solution:

As per Equi-partition law,

each degree of freedom contributes
$\frac{1}{2} k_{B} T$ average energy.

In mono atomic gas, $D . O . F .$ $= 3$
$\Rightarrow$ Average energy $= 3 \times \frac{1}{2} k_{B} T = \frac{3}{2} k_{B} T$

Stream:JEESubject:PhysicsTopic:Heat & ThermoSubtopic:KTG

⏱ 2mℹ️ Source: PYQ_2021

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