Verified Solution • 2025–26 Session moderate

QNEET-2020-Ph-701: NEET 2020 Physics - Class 11 NEET-2020-Ph-701 Solution: The average thermal energy for a mono-atomic gas is: (\(k_B\)…

The average thermal energy for a mono-atomic gas is: (kBk_B is Boltzmann constant and T absolute temperature) 32kBT\frac{3}{2}k_BT 52kBT\frac{5}{2}k_BT 72kBT\frac{7}{2}k_BT 12kBT\frac{1}{2}k_BT

Multiple Choice Options

  • A 32kBT{3 \over 2}{k_B}T 2 3 _ k B _ T
  • B 52kBT{5 \over 2}{k_B}T 2 5 _ k B _ T
  • C 72kBT{7 \over 2}{k_B}T 2 7 _ k B _ T
  • D 12kBT{1 \over 2}{k_B}T 2 1 _ k B _ T

Step-by-Step Verified Solution

The degree of freedom for monoatomic gas is 3. So, average thermal energy per molecule, K.E. avg = 3 2 k B T

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