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AP EAMCET · PHYSICS · Kinetic Theory of Gases

The molecular motion ceases at

  1. A \(273 \mathrm{~K}\)
  2. B \(273^{\circ} \mathrm{C}\)
  3. C \(-273 \mathrm{~K}\)
  4. D \(-273^{\circ} \mathrm{C}\)
Verified Solution

Answer & Solution

Correct Answer

(D) \(-273^{\circ} \mathrm{C}\)

Step-by-step Solution

Detailed explanation

According to kinetic theory of gases, average kinetic energy of gas molecules is \[ K=\frac{3}{2} R T \] i.e. \(\quad K \propto T\) We know that, kinetic energy may not be negative. Its minimum value may be equal to zero. Hence, minimum possible temperature on the earth is equal…