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BITSAT2019PhysicsThermodynamicsActual

The figure shows the graph of p V T versus p for 2 × 10 - 4 kg of hydrogen gas at two different temperatures, where p , V and T represents pressure, volume and temperature respectively.Then, the value of p V T , where the curve meet on the vertical axis, is

Options

  1. AR 5
  2. B2   R 3
  3. CR 10
  4. DR 15

Correct answer

C. R 10

Step-by-step solution

Number of moles in 2 × 10 - 4   kg μ =   Mass   of   hydrogen   in   gram     Molecul a r   mass   = 2 × 10 - 4 × 10 3 2 = 0 . 1   mole ∴    p V = μ R T p V T = μ R = 0 . 1 × R = R 10

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