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COMEDK2013ChemistryStates of Matter

Two gas cylinders having same capacity have been filled with 44 ~g of H ₂ and 44 ~g of CO ₂ respectively. If the pressure in CO ₂ cylinder is 1 atmosphere at a particular temperature. The pressure in the hydrogen cylinder at the same temperature is

Options

  1. A2 ~atm
  2. B1 ~atm
  3. C22 ~atm
  4. D44 ~atm

Correct answer

C. 22 ~atm

Step-by-step solution

Pressure in the cylinder is directly proportional to the number of moles of gases. 44 ~g of H ₂ has = 44 2 =22 moles of H ₂44 ~g of CO ₂ has = 44 44 =1 mole of H ₂ Pressure of H ₂ (p_ H ₂ )= 22 1 1=22 ~atm . (a) According to Bohr's model, angular momentum of n th orbit of hydrogen atom is m v r_ n or n h 2 .

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