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Question

The total kinetic energy of 1 mole of oxygen at 27°C is : [Take R = (25/3) J/mol-K]

Options :

  1. 6250 J

  2. 3125 J

  3. 12500 J

  4. 625 J

Show Answer

Answer :

6250 J

Solution :

(f = 5 for diatomic gas)
K = 5/2 μRT = 5/2 * 1 * 25/3 * 300
= 250 × 25
= 6250 J

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