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MHT CET202618 April 2026Evening ShiftPhysicsThermodynamicsActual

At a pressure P and temperature T, 7 gram of oxygen occupies a volume V. The equation of state will be (Molecular weight of Oxygen = 32 )

Options

  1. APV = ( 2 7 )RT
  2. BPV = ( 7 2 )RT
  3. CPV = ( 7 16 )RT
  4. DPV = ( 7 32 )RT

Correct answer

D. PV = ( 7 32 )RT

Step-by-step solution

The ideal gas equation is given by PV = nRT . The number of moles n is calculated as n = m M . Given mass of oxygen m = 7 g and molecular weight M = 32 g/mol. Therefore, n = 7 32 . Substituting the value of n into the ideal gas equation, we get PV = ( 7 32 )RT .

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