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BITSAT2019ChemistryStates of MatterActual

The density of a certain gas at 30 0 C and 768 torr is 1 . 35 kg / m 3 , then density of the gas at STP is

Options

  1. A1 . 48   kg / m 3
  2. B1 . 27   kg / m 3
  3. C1 . 35   kg / m 3
  4. D1 . 00   kg / m 3

Correct answer

A. 1 . 48   kg / m 3

Step-by-step solution

Using PM = dRT P 1 M P 2 M   =   d 1 RT 1 d 2 RT 2 768 760   =   1 . 35 × 303 d 2 × 273 d 2   =   1 . 35 × 303 × 760 273 × 768 d 2   =   1 . 48   kg / m 3

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